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-rw-r--r--fs/nfs/Kconfig5
-rw-r--r--fs/nfs/Makefile3
-rw-r--r--fs/nfs/blocklayout/blocklayout.c6
-rw-r--r--fs/nfs/cache_lib.c3
-rw-r--r--fs/nfs/callback.c33
-rw-r--r--fs/nfs/callback.h27
-rw-r--r--fs/nfs/callback_proc.c80
-rw-r--r--fs/nfs/callback_xdr.c267
-rw-r--r--fs/nfs/client.c103
-rw-r--r--fs/nfs/dir.c199
-rw-r--r--fs/nfs/direct.c48
-rw-r--r--fs/nfs/export.c177
-rw-r--r--fs/nfs/file.c34
-rw-r--r--fs/nfs/filelayout/filelayout.c199
-rw-r--r--fs/nfs/filelayout/filelayout.h19
-rw-r--r--fs/nfs/filelayout/filelayoutdev.c8
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c126
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.h14
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayoutdev.c19
-rw-r--r--fs/nfs/inode.c54
-rw-r--r--fs/nfs/internal.h28
-rw-r--r--fs/nfs/mount_clnt.c29
-rw-r--r--fs/nfs/namespace.c45
-rw-r--r--fs/nfs/nfs2xdr.c72
-rw-r--r--fs/nfs/nfs3proc.c67
-rw-r--r--fs/nfs/nfs3xdr.c153
-rw-r--r--fs/nfs/nfs42proc.c89
-rw-r--r--fs/nfs/nfs42xdr.c72
-rw-r--r--fs/nfs/nfs4_fs.h21
-rw-r--r--fs/nfs/nfs4client.c291
-rw-r--r--fs/nfs/nfs4getroot.c3
-rw-r--r--fs/nfs/nfs4idmap.c5
-rw-r--r--fs/nfs/nfs4namespace.c9
-rw-r--r--fs/nfs/nfs4proc.c625
-rw-r--r--fs/nfs/nfs4renewd.c2
-rw-r--r--fs/nfs/nfs4session.h7
-rw-r--r--fs/nfs/nfs4state.c30
-rw-r--r--fs/nfs/nfs4trace.h93
-rw-r--r--fs/nfs/nfs4xdr.c689
-rw-r--r--fs/nfs/objlayout/Kbuild5
-rw-r--r--fs/nfs/objlayout/objio_osd.c675
-rw-r--r--fs/nfs/objlayout/objlayout.c706
-rw-r--r--fs/nfs/objlayout/objlayout.h183
-rw-r--r--fs/nfs/objlayout/pnfs_osd_xdr_cli.c415
-rw-r--r--fs/nfs/pagelist.c100
-rw-r--r--fs/nfs/pnfs.c87
-rw-r--r--fs/nfs/pnfs.h18
-rw-r--r--fs/nfs/pnfs_nfs.c65
-rw-r--r--fs/nfs/proc.c4
-rw-r--r--fs/nfs/read.c9
-rw-r--r--fs/nfs/super.c58
-rw-r--r--fs/nfs/unlink.c13
-rw-r--r--fs/nfs/write.c207
53 files changed, 2372 insertions, 3927 deletions
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index f31fd0dd92c6..69d02cf8cf37 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -123,11 +123,6 @@ config PNFS_BLOCK
depends on NFS_V4_1 && BLK_DEV_DM
default NFS_V4
-config PNFS_OBJLAYOUT
- tristate
- depends on NFS_V4_1 && SCSI_OSD_ULD
- default NFS_V4
-
config PNFS_FLEXFILE_LAYOUT
tristate
depends on NFS_V4_1 && NFS_V3
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index 6abdda209642..1fb118902d57 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -7,7 +7,7 @@ obj-$(CONFIG_NFS_FS) += nfs.o
CFLAGS_nfstrace.o += -I$(src)
nfs-y := client.o dir.o file.o getroot.o inode.o super.o \
io.o direct.o pagelist.o read.o symlink.o unlink.o \
- write.o namespace.o mount_clnt.o nfstrace.o
+ write.o namespace.o mount_clnt.o nfstrace.o export.o
nfs-$(CONFIG_ROOT_NFS) += nfsroot.o
nfs-$(CONFIG_SYSCTL) += sysctl.o
nfs-$(CONFIG_NFS_FSCACHE) += fscache.o fscache-index.o
@@ -31,6 +31,5 @@ nfsv4-$(CONFIG_NFS_V4_1) += pnfs.o pnfs_dev.o pnfs_nfs.o
nfsv4-$(CONFIG_NFS_V4_2) += nfs42proc.o
obj-$(CONFIG_PNFS_FILE_LAYOUT) += filelayout/
-obj-$(CONFIG_PNFS_OBJLAYOUT) += objlayout/
obj-$(CONFIG_PNFS_BLOCK) += blocklayout/
obj-$(CONFIG_PNFS_FLEXFILE_LAYOUT) += flexfilelayout/
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 2905479f214a..d8863a804b15 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -188,7 +188,7 @@ static void bl_end_io_read(struct bio *bio)
{
struct parallel_io *par = bio->bi_private;
- if (bio->bi_error) {
+ if (bio->bi_status) {
struct nfs_pgio_header *header = par->data;
if (!header->pnfs_error)
@@ -319,7 +319,7 @@ static void bl_end_io_write(struct bio *bio)
struct parallel_io *par = bio->bi_private;
struct nfs_pgio_header *header = par->data;
- if (bio->bi_error) {
+ if (bio->bi_status) {
if (!header->pnfs_error)
header->pnfs_error = -EIO;
pnfs_set_lo_fail(header->lseg);
@@ -381,7 +381,7 @@ bl_write_pagelist(struct nfs_pgio_header *header, int sync)
struct blk_plug plug;
int i;
- dprintk("%s enter, %Zu@%lld\n", __func__, count, offset);
+ dprintk("%s enter, %zu@%lld\n", __func__, count, offset);
/* At this point, header->page_aray is a (sequential) list of nfs_pages.
* We want to write each, and if there is an error set pnfs_error
diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c
index 6de15709d024..2ae676f93e6b 100644
--- a/fs/nfs/cache_lib.c
+++ b/fs/nfs/cache_lib.c
@@ -141,8 +141,7 @@ int nfs_cache_register_net(struct net *net, struct cache_detail *cd)
void nfs_cache_unregister_sb(struct super_block *sb, struct cache_detail *cd)
{
- if (cd->u.pipefs.dir)
- sunrpc_cache_unregister_pipefs(cd);
+ sunrpc_cache_unregister_pipefs(cd);
}
void nfs_cache_unregister_net(struct net *net, struct cache_detail *cd)
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 484bebc20bca..34323877ec13 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -9,6 +9,7 @@
#include <linux/completion.h>
#include <linux/ip.h>
#include <linux/module.h>
+#include <linux/sched/signal.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/nfs_fs.h>
@@ -75,7 +76,10 @@ nfs4_callback_svc(void *vrqstp)
set_freezable();
- while (!kthread_should_stop()) {
+ while (!kthread_freezable_should_stop(NULL)) {
+
+ if (signal_pending(current))
+ flush_signals(current);
/*
* Listen for a request on the socket
*/
@@ -84,6 +88,8 @@ nfs4_callback_svc(void *vrqstp)
continue;
svc_process(rqstp);
}
+ svc_exit_thread(rqstp);
+ module_put_and_exit(0);
return 0;
}
@@ -102,9 +108,10 @@ nfs41_callback_svc(void *vrqstp)
set_freezable();
- while (!kthread_should_stop()) {
- if (try_to_freeze())
- continue;
+ while (!kthread_freezable_should_stop(NULL)) {
+
+ if (signal_pending(current))
+ flush_signals(current);
prepare_to_wait(&serv->sv_cb_waitq, &wq, TASK_INTERRUPTIBLE);
spin_lock_bh(&serv->sv_cb_lock);
@@ -120,11 +127,13 @@ nfs41_callback_svc(void *vrqstp)
error);
} else {
spin_unlock_bh(&serv->sv_cb_lock);
- schedule();
+ if (!kthread_should_stop())
+ schedule();
finish_wait(&serv->sv_cb_waitq, &wq);
}
- flush_signals(current);
}
+ svc_exit_thread(rqstp);
+ module_put_and_exit(0);
return 0;
}
@@ -220,23 +229,23 @@ err_bind:
static struct svc_serv_ops nfs40_cb_sv_ops = {
.svo_function = nfs4_callback_svc,
.svo_enqueue_xprt = svc_xprt_do_enqueue,
- .svo_setup = svc_set_num_threads,
+ .svo_setup = svc_set_num_threads_sync,
.svo_module = THIS_MODULE,
};
#if defined(CONFIG_NFS_V4_1)
static struct svc_serv_ops nfs41_cb_sv_ops = {
.svo_function = nfs41_callback_svc,
.svo_enqueue_xprt = svc_xprt_do_enqueue,
- .svo_setup = svc_set_num_threads,
+ .svo_setup = svc_set_num_threads_sync,
.svo_module = THIS_MODULE,
};
-struct svc_serv_ops *nfs4_cb_sv_ops[] = {
+static struct svc_serv_ops *nfs4_cb_sv_ops[] = {
[0] = &nfs40_cb_sv_ops,
[1] = &nfs41_cb_sv_ops,
};
#else
-struct svc_serv_ops *nfs4_cb_sv_ops[] = {
+static struct svc_serv_ops *nfs4_cb_sv_ops[] = {
[0] = &nfs40_cb_sv_ops,
[1] = NULL,
};
@@ -279,7 +288,7 @@ static struct svc_serv *nfs_callback_create_svc(int minorversion)
printk(KERN_WARNING "nfs_callback_create_svc: no kthread, %d users??\n",
cb_info->users);
- serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, sv_ops);
+ serv = svc_create_pooled(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, sv_ops);
if (!serv) {
printk(KERN_ERR "nfs_callback_create_svc: create service failed\n");
return ERR_PTR(-ENOMEM);
@@ -430,7 +439,7 @@ static int nfs_callback_authenticate(struct svc_rqst *rqstp)
/*
* Define NFS4 callback program
*/
-static struct svc_version *nfs4_callback_version[] = {
+static const struct svc_version *nfs4_callback_version[] = {
[1] = &nfs4_callback_version1,
[4] = &nfs4_callback_version4,
};
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index c701c308fac5..3dc54d7cb19c 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -114,8 +114,7 @@ struct cb_sequenceres {
uint32_t csr_target_highestslotid;
};
-extern __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
- struct cb_sequenceres *res,
+extern __be32 nfs4_callback_sequence(void *argp, void *resp,
struct cb_process_state *cps);
#define RCA4_TYPE_MASK_RDATA_DLG 0
@@ -134,15 +133,13 @@ struct cb_recallanyargs {
uint32_t craa_type_mask;
};
-extern __be32 nfs4_callback_recallany(struct cb_recallanyargs *args,
- void *dummy,
+extern __be32 nfs4_callback_recallany(void *argp, void *resp,
struct cb_process_state *cps);
struct cb_recallslotargs {
uint32_t crsa_target_highest_slotid;
};
-extern __be32 nfs4_callback_recallslot(struct cb_recallslotargs *args,
- void *dummy,
+extern __be32 nfs4_callback_recallslot(void *argp, void *resp,
struct cb_process_state *cps);
struct cb_layoutrecallargs {
@@ -159,9 +156,8 @@ struct cb_layoutrecallargs {
};
};
-extern __be32 nfs4_callback_layoutrecall(
- struct cb_layoutrecallargs *args,
- void *dummy, struct cb_process_state *cps);
+extern __be32 nfs4_callback_layoutrecall(void *argp, void *resp,
+ struct cb_process_state *cps);
struct cb_devicenotifyitem {
uint32_t cbd_notify_type;
@@ -175,9 +171,8 @@ struct cb_devicenotifyargs {
struct cb_devicenotifyitem *devs;
};
-extern __be32 nfs4_callback_devicenotify(
- struct cb_devicenotifyargs *args,
- void *dummy, struct cb_process_state *cps);
+extern __be32 nfs4_callback_devicenotify(void *argp, void *resp,
+ struct cb_process_state *cps);
struct cb_notify_lock_args {
struct nfs_fh cbnl_fh;
@@ -185,15 +180,13 @@ struct cb_notify_lock_args {
bool cbnl_valid;
};
-extern __be32 nfs4_callback_notify_lock(struct cb_notify_lock_args *args,
- void *dummy,
+extern __be32 nfs4_callback_notify_lock(void *argp, void *resp,
struct cb_process_state *cps);
#endif /* CONFIG_NFS_V4_1 */
extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *);
-extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
- struct cb_getattrres *res,
+extern __be32 nfs4_callback_getattr(void *argp, void *resp,
struct cb_process_state *cps);
-extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
+extern __be32 nfs4_callback_recall(void *argp, void *resp,
struct cb_process_state *cps);
#if IS_ENABLED(CONFIG_NFS_V4)
extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index f073a6d2c6a5..5427cdf04c5a 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -19,10 +19,11 @@
#define NFSDBG_FACILITY NFSDBG_CALLBACK
-__be32 nfs4_callback_getattr(struct cb_getattrargs *args,
- struct cb_getattrres *res,
+__be32 nfs4_callback_getattr(void *argp, void *resp,
struct cb_process_state *cps)
{
+ struct cb_getattrargs *args = argp;
+ struct cb_getattrres *res = resp;
struct nfs_delegation *delegation;
struct nfs_inode *nfsi;
struct inode *inode;
@@ -68,9 +69,10 @@ out:
return res->status;
}
-__be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
+__be32 nfs4_callback_recall(void *argp, void *resp,
struct cb_process_state *cps)
{
+ struct cb_recallargs *args = argp;
struct inode *inode;
__be32 res;
@@ -131,10 +133,11 @@ restart:
if (!inode)
continue;
if (!nfs_sb_active(inode->i_sb)) {
- rcu_read_lock();
+ rcu_read_unlock();
spin_unlock(&clp->cl_lock);
iput(inode);
spin_lock(&clp->cl_lock);
+ rcu_read_lock();
goto restart;
}
return inode;
@@ -170,10 +173,11 @@ restart:
if (!inode)
continue;
if (!nfs_sb_active(inode->i_sb)) {
- rcu_read_lock();
+ rcu_read_unlock();
spin_unlock(&clp->cl_lock);
iput(inode);
spin_lock(&clp->cl_lock);
+ rcu_read_lock();
goto restart;
}
return inode;
@@ -317,31 +321,19 @@ static u32 initiate_bulk_draining(struct nfs_client *clp,
static u32 do_callback_layoutrecall(struct nfs_client *clp,
struct cb_layoutrecallargs *args)
{
- u32 res;
-
- dprintk("%s enter, type=%i\n", __func__, args->cbl_recall_type);
if (args->cbl_recall_type == RETURN_FILE)
- res = initiate_file_draining(clp, args);
- else
- res = initiate_bulk_draining(clp, args);
- dprintk("%s returning %i\n", __func__, res);
- return res;
-
+ return initiate_file_draining(clp, args);
+ return initiate_bulk_draining(clp, args);
}
-__be32 nfs4_callback_layoutrecall(struct cb_layoutrecallargs *args,
- void *dummy, struct cb_process_state *cps)
+__be32 nfs4_callback_layoutrecall(void *argp, void *resp,
+ struct cb_process_state *cps)
{
- u32 res;
-
- dprintk("%s: -->\n", __func__);
+ struct cb_layoutrecallargs *args = argp;
+ u32 res = NFS4ERR_OP_NOT_IN_SESSION;
if (cps->clp)
res = do_callback_layoutrecall(cps->clp, args);
- else
- res = NFS4ERR_OP_NOT_IN_SESSION;
-
- dprintk("%s: exit with status = %d\n", __func__, res);
return cpu_to_be32(res);
}
@@ -356,16 +348,15 @@ static void pnfs_recall_all_layouts(struct nfs_client *clp)
do_callback_layoutrecall(clp, &args);
}
-__be32 nfs4_callback_devicenotify(struct cb_devicenotifyargs *args,
- void *dummy, struct cb_process_state *cps)
+__be32 nfs4_callback_devicenotify(void *argp, void *resp,
+ struct cb_process_state *cps)
{
+ struct cb_devicenotifyargs *args = argp;
int i;
__be32 res = 0;
struct nfs_client *clp = cps->clp;
struct nfs_server *server = NULL;
- dprintk("%s: -->\n", __func__);
-
if (!clp) {
res = cpu_to_be32(NFS4ERR_OP_NOT_IN_SESSION);
goto out;
@@ -384,8 +375,6 @@ __be32 nfs4_callback_devicenotify(struct cb_devicenotifyargs *args,
goto found;
}
rcu_read_unlock();
- dprintk("%s: layout type %u not found\n",
- __func__, dev->cbd_layout_type);
continue;
}
@@ -395,8 +384,6 @@ __be32 nfs4_callback_devicenotify(struct cb_devicenotifyargs *args,
out:
kfree(args->devs);
- dprintk("%s: exit with status = %u\n",
- __func__, be32_to_cpu(res));
return res;
}
@@ -417,16 +404,11 @@ static __be32
validate_seqid(const struct nfs4_slot_table *tbl, const struct nfs4_slot *slot,
const struct cb_sequenceargs * args)
{
- dprintk("%s enter. slotid %u seqid %u, slot table seqid: %u\n",
- __func__, args->csa_slotid, args->csa_sequenceid, slot->seq_nr);
-
if (args->csa_slotid > tbl->server_highest_slotid)
return htonl(NFS4ERR_BADSLOT);
/* Replay */
if (args->csa_sequenceid == slot->seq_nr) {
- dprintk("%s seqid %u is a replay\n",
- __func__, args->csa_sequenceid);
if (nfs4_test_locked_slot(tbl, slot->slot_nr))
return htonl(NFS4ERR_DELAY);
/* Signal process_op to set this error on next op */
@@ -480,15 +462,6 @@ static bool referring_call_exists(struct nfs_client *clp,
for (j = 0; j < rclist->rcl_nrefcalls; j++) {
ref = &rclist->rcl_refcalls[j];
-
- dprintk("%s: sessionid %x:%x:%x:%x sequenceid %u "
- "slotid %u\n", __func__,
- ((u32 *)&rclist->rcl_sessionid.data)[0],
- ((u32 *)&rclist->rcl_sessionid.data)[1],
- ((u32 *)&rclist->rcl_sessionid.data)[2],
- ((u32 *)&rclist->rcl_sessionid.data)[3],
- ref->rc_sequenceid, ref->rc_slotid);
-
status = nfs4_slot_wait_on_seqid(tbl, ref->rc_slotid,
ref->rc_sequenceid, HZ >> 1) < 0;
if (status)
@@ -500,10 +473,11 @@ out:
return status;
}
-__be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
- struct cb_sequenceres *res,
+__be32 nfs4_callback_sequence(void *argp, void *resp,
struct cb_process_state *cps)
{
+ struct cb_sequenceargs *args = argp;
+ struct cb_sequenceres *res = resp;
struct nfs4_slot_table *tbl;
struct nfs4_slot *slot;
struct nfs_client *clp;
@@ -593,8 +567,6 @@ out:
res->csr_status = status;
trace_nfs4_cb_sequence(args, res, status);
- dprintk("%s: exit with status = %d res->csr_status %d\n", __func__,
- ntohl(status), ntohl(res->csr_status));
return status;
}
@@ -604,9 +576,10 @@ validate_bitmap_values(unsigned long mask)
return (mask & ~RCA4_TYPE_MASK_ALL) == 0;
}
-__be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy,
+__be32 nfs4_callback_recallany(void *argp, void *resp,
struct cb_process_state *cps)
{
+ struct cb_recallanyargs *args = argp;
__be32 status;
fmode_t flags = 0;
@@ -639,9 +612,10 @@ out:
}
/* Reduce the fore channel's max_slots to the target value */
-__be32 nfs4_callback_recallslot(struct cb_recallslotargs *args, void *dummy,
+__be32 nfs4_callback_recallslot(void *argp, void *resp,
struct cb_process_state *cps)
{
+ struct cb_recallslotargs *args = argp;
struct nfs4_slot_table *fc_tbl;
__be32 status;
@@ -664,9 +638,11 @@ out:
return status;
}
-__be32 nfs4_callback_notify_lock(struct cb_notify_lock_args *args, void *dummy,
+__be32 nfs4_callback_notify_lock(void *argp, void *resp,
struct cb_process_state *cps)
{
+ struct cb_notify_lock_args *args = argp;
+
if (!cps->clp) /* set in cb_sequence */
return htonl(NFS4ERR_OP_NOT_IN_SESSION);
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index eb094c6011d8..681dd642f119 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -43,32 +43,27 @@
/* Internal error code */
#define NFS4ERR_RESOURCE_HDR 11050
-typedef __be32 (*callback_process_op_t)(void *, void *,
- struct cb_process_state *);
-typedef __be32 (*callback_decode_arg_t)(struct svc_rqst *, struct xdr_stream *, void *);
-typedef __be32 (*callback_encode_res_t)(struct svc_rqst *, struct xdr_stream *, void *);
-
-
struct callback_op {
- callback_process_op_t process_op;
- callback_decode_arg_t decode_args;
- callback_encode_res_t encode_res;
+ __be32 (*process_op)(void *, void *, struct cb_process_state *);
+ __be32 (*decode_args)(struct svc_rqst *, struct xdr_stream *, void *);
+ __be32 (*encode_res)(struct svc_rqst *, struct xdr_stream *,
+ const void *);
long res_maxsize;
};
static struct callback_op callback_ops[];
-static __be32 nfs4_callback_null(struct svc_rqst *rqstp, void *argp, void *resp)
+static __be32 nfs4_callback_null(struct svc_rqst *rqstp)
{
return htonl(NFS4_OK);
}
-static int nfs4_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfs4_decode_void(struct svc_rqst *rqstp, __be32 *p)
{
return xdr_argsize_check(rqstp, p);
}
-static int nfs4_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfs4_encode_void(struct svc_rqst *rqstp, __be32 *p)
{
return xdr_ressize_check(rqstp, p);
}
@@ -83,23 +78,15 @@ static __be32 *read_buf(struct xdr_stream *xdr, size_t nbytes)
return p;
}
-static __be32 decode_string(struct xdr_stream *xdr, unsigned int *len, const char **str)
+static __be32 decode_string(struct xdr_stream *xdr, unsigned int *len,
+ const char **str, size_t maxlen)
{
- __be32 *p;
-
- p = read_buf(xdr, 4);
- if (unlikely(p == NULL))
- return htonl(NFS4ERR_RESOURCE);
- *len = ntohl(*p);
-
- if (*len != 0) {
- p = read_buf(xdr, *len);
- if (unlikely(p == NULL))
- return htonl(NFS4ERR_RESOURCE);
- *str = (const char *)p;
- } else
- *str = NULL;
+ ssize_t err;
+ err = xdr_stream_decode_opaque_inline(xdr, (void **)str, maxlen);
+ if (err < 0)
+ return cpu_to_be32(NFS4ERR_RESOURCE);
+ *len = err;
return 0;
}
@@ -162,15 +149,9 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound
__be32 *p;
__be32 status;
- status = decode_string(xdr, &hdr->taglen, &hdr->tag);
+ status = decode_string(xdr, &hdr->taglen, &hdr->tag, CB_OP_TAGLEN_MAXSZ);
if (unlikely(status != 0))
return status;
- /* We do not like overly long tags! */
- if (hdr->taglen > CB_OP_TAGLEN_MAXSZ) {
- printk("NFS: NFSv4 CALLBACK %s: client sent tag of length %u\n",
- __func__, hdr->taglen);
- return htonl(NFS4ERR_RESOURCE);
- }
p = read_buf(xdr, 12);
if (unlikely(p == NULL))
return htonl(NFS4ERR_RESOURCE);
@@ -185,8 +166,6 @@ static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound
return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
}
hdr->nops = ntohl(*p);
- dprintk("%s: minorversion %d nops %d\n", __func__,
- hdr->minorversion, hdr->nops);
return 0;
}
@@ -200,37 +179,33 @@ static __be32 decode_op_hdr(struct xdr_stream *xdr, unsigned int *op)
return 0;
}
-static __be32 decode_getattr_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_getattrargs *args)
+static __be32 decode_getattr_args(struct svc_rqst *rqstp,
+ struct xdr_stream *xdr, void *argp)
{
+ struct cb_getattrargs *args = argp;
__be32 status;
status = decode_fh(xdr, &args->fh);
if (unlikely(status != 0))
- goto out;
- status = decode_bitmap(xdr, args->bitmap);
-out:
- dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
- return status;
+ return status;
+ return decode_bitmap(xdr, args->bitmap);
}
-static __be32 decode_recall_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_recallargs *args)
+static __be32 decode_recall_args(struct svc_rqst *rqstp,
+ struct xdr_stream *xdr, void *argp)
{
+ struct cb_recallargs *args = argp;
__be32 *p;
__be32 status;
status = decode_delegation_stateid(xdr, &args->stateid);
if (unlikely(status != 0))
- goto out;
+ return status;
p = read_buf(xdr, 4);
- if (unlikely(p == NULL)) {
- status = htonl(NFS4ERR_RESOURCE);
- goto out;
- }
+ if (unlikely(p == NULL))
+ return htonl(NFS4ERR_RESOURCE);
args->truncate = ntohl(*p);
- status = decode_fh(xdr, &args->fh);
-out:
- dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
- return status;
+ return decode_fh(xdr, &args->fh);
}
#if defined(CONFIG_NFS_V4_1)
@@ -241,18 +216,16 @@ static __be32 decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *statei
}
static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
- struct xdr_stream *xdr,
- struct cb_layoutrecallargs *args)
+ struct xdr_stream *xdr, void *argp)
{
+ struct cb_layoutrecallargs *args = argp;
__be32 *p;
__be32 status = 0;
uint32_t iomode;
p = read_buf(xdr, 4 * sizeof(uint32_t));
- if (unlikely(p == NULL)) {
- status = htonl(NFS4ERR_BADXDR);
- goto out;
- }
+ if (unlikely(p == NULL))
+ return htonl(NFS4ERR_BADXDR);
args->cbl_layout_type = ntohl(*p++);
/* Depite the spec's xdr, iomode really belongs in the FILE switch,
@@ -266,44 +239,31 @@ static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
args->cbl_range.iomode = iomode;
status = decode_fh(xdr, &args->cbl_fh);
if (unlikely(status != 0))
- goto out;
+ return status;
p = read_buf(xdr, 2 * sizeof(uint64_t));
- if (unlikely(p == NULL)) {
- status = htonl(NFS4ERR_BADXDR);
- goto out;
- }
+ if (unlikely(p == NULL))
+ return htonl(NFS4ERR_BADXDR);
p = xdr_decode_hyper(p, &args->cbl_range.offset);
p = xdr_decode_hyper(p, &args->cbl_range.length);
- status = decode_layout_stateid(xdr, &args->cbl_stateid);
- if (unlikely(status != 0))
- goto out;
+ return decode_layout_stateid(xdr, &args->cbl_stateid);
} else if (args->cbl_recall_type == RETURN_FSID) {
p = read_buf(xdr, 2 * sizeof(uint64_t));
- if (unlikely(p == NULL)) {
- status = htonl(NFS4ERR_BADXDR);
- goto out;
- }
+ if (unlikely(p == NULL))
+ return htonl(NFS4ERR_BADXDR);
p = xdr_decode_hyper(p, &args->cbl_fsid.major);
p = xdr_decode_hyper(p, &args->cbl_fsid.minor);
- } else if (args->cbl_recall_type != RETURN_ALL) {
- status = htonl(NFS4ERR_BADXDR);
- goto out;
- }
- dprintk("%s: ltype 0x%x iomode %d changed %d recall_type %d\n",
- __func__,
- args->cbl_layout_type, iomode,
- args->cbl_layoutchanged, args->cbl_recall_type);
-out:
- dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
- return status;
+ } else if (args->cbl_recall_type != RETURN_ALL)
+ return htonl(NFS4ERR_BADXDR);
+ return 0;
}
static
__be32 decode_devicenotify_args(struct svc_rqst *rqstp,
struct xdr_stream *xdr,
- struct cb_devicenotifyargs *args)
+ void *argp)
{
+ struct cb_devicenotifyargs *args = argp;
__be32 *p;
__be32 status = 0;
u32 tmp;
@@ -443,20 +403,20 @@ out:
static __be32 decode_cb_sequence_args(struct svc_rqst *rqstp,
struct xdr_stream *xdr,
- struct cb_sequenceargs *args)
+ void *argp)
{
+ struct cb_sequenceargs *args = argp;
__be32 *p;
int i;
__be32 status;
status = decode_sessionid(xdr, &args->csa_sessionid);
if (status)
- goto out;
+ return status;
- status = htonl(NFS4ERR_RESOURCE);
p = read_buf(xdr, 5 * sizeof(uint32_t));
if (unlikely(p == NULL))
- goto out;
+ return htonl(NFS4ERR_RESOURCE);
args->csa_addr = svc_addr(rqstp);
args->csa_sequenceid = ntohl(*p++);
@@ -470,7 +430,7 @@ static __be32 decode_cb_sequence_args(struct svc_rqst *rqstp,
sizeof(*args->csa_rclists),
GFP_KERNEL);
if (unlikely(args->csa_rclists == NULL))
- goto out;
+ return htonl(NFS4ERR_RESOURCE);
for (i = 0; i < args->csa_nrclists; i++) {
status = decode_rc_list(xdr, &args->csa_rclists[i]);
@@ -480,33 +440,20 @@ static __be32 decode_cb_sequence_args(struct svc_rqst *rqstp,
}
}
}
- status = 0;
-
- dprintk("%s: sessionid %x:%x:%x:%x sequenceid %u slotid %u "
- "highestslotid %u cachethis %d nrclists %u\n",
- __func__,
- ((u32 *)&args->csa_sessionid)[0],
- ((u32 *)&args->csa_sessionid)[1],
- ((u32 *)&args->csa_sessionid)[2],
- ((u32 *)&args->csa_sessionid)[3],
- args->csa_sequenceid, args->csa_slotid,
- args->csa_highestslotid, args->csa_cachethis,
- args->csa_nrclists);
-out:
- dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
- return status;
+ return 0;
out_free:
for (i = 0; i < args->csa_nrclists; i++)
kfree(args->csa_rclists[i].rcl_refcalls);
kfree(args->csa_rclists);
- goto out;
+ return status;
}
static __be32 decode_recallany_args(struct svc_rqst *rqstp,
struct xdr_stream *xdr,
- struct cb_recallanyargs *args)
+ void *argp)
{
+ struct cb_recallanyargs *args = argp;
uint32_t bitmap[2];
__be32 *p, status;
@@ -524,8 +471,9 @@ static __be32 decode_recallany_args(struct svc_rqst *rqstp,
static __be32 decode_recallslot_args(struct svc_rqst *rqstp,
struct xdr_stream *xdr,
- struct cb_recallslotargs *args)
+ void *argp)
{
+ struct cb_recallslotargs *args = argp;
__be32 *p;
p = read_buf(xdr, 4);
@@ -565,29 +513,24 @@ static __be32 decode_lockowner(struct xdr_stream *xdr, struct cb_notify_lock_arg
return 0;
}
-static __be32 decode_notify_lock_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_notify_lock_args *args)
+static __be32 decode_notify_lock_args(struct svc_rqst *rqstp,
+ struct xdr_stream *xdr, void *argp)
{
+ struct cb_notify_lock_args *args = argp;
__be32 status;
status = decode_fh(xdr, &args->cbnl_fh);
if (unlikely(status != 0))
- goto out;
- status = decode_lockowner(xdr, args);
-out:
- dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
- return status;
+ return status;
+ return decode_lockowner(xdr, args);
}
#endif /* CONFIG_NFS_V4_1 */
static __be32 encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
{
- __be32 *p;
-
- p = xdr_reserve_space(xdr, 4 + len);
- if (unlikely(p == NULL))
- return htonl(NFS4ERR_RESOURCE);
- xdr_encode_opaque(p, str, len);
+ if (unlikely(xdr_stream_encode_opaque(xdr, str, len) < 0))
+ return cpu_to_be32(NFS4ERR_RESOURCE);
return 0;
}
@@ -703,8 +646,10 @@ static __be32 encode_op_hdr(struct xdr_stream *xdr, uint32_t op, __be32 res)
return 0;
}
-static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr, const struct cb_getattrres *res)
+static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr,
+ const void *resp)
{
+ const struct cb_getattrres *res = resp;
__be32 *savep = NULL;
__be32 status = res->status;
@@ -725,7 +670,6 @@ static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr,
status = encode_attr_mtime(xdr, res->bitmap, &res->mtime);
*savep = htonl((unsigned int)((char *)xdr->p - (char *)(savep+1)));
out:
- dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
return status;
}
@@ -746,17 +690,18 @@ static __be32 encode_sessionid(struct xdr_stream *xdr,
static __be32 encode_cb_sequence_res(struct svc_rqst *rqstp,
struct xdr_stream *xdr,
- const struct cb_sequenceres *res)
+ const void *resp)
{
+ const struct cb_sequenceres *res = resp;
__be32 *p;
__be32 status = res->csr_status;
if (unlikely(status != 0))
- goto out;
+ return status;
status = encode_sessionid(xdr, &res->csr_sessionid);
if (status)
- goto out;
+ return status;
p = xdr_reserve_space(xdr, 4 * sizeof(uint32_t));
if (unlikely(p == NULL))
@@ -766,9 +711,7 @@ static __be32 encode_cb_sequence_res(struct svc_rqst *rqstp,
*p++ = htonl(res->csr_slotid);
*p++ = htonl(res->csr_highestslotid);
*p++ = htonl(res->csr_target_highestslotid);
-out:
- dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
- return status;
+ return 0;
}
static __be32
@@ -818,7 +761,6 @@ static void nfs4_callback_free_slot(struct nfs4_session *session,
* A single slot, so highest used slotid is either 0 or -1
*/
nfs4_free_slot(tbl, slot);
- nfs4_slot_tbl_drain_complete(tbl);
spin_unlock(&tbl->slot_tbl_lock);
}
@@ -889,14 +831,10 @@ static __be32 process_op(int nop, struct svc_rqst *rqstp,
long maxlen;
__be32 res;
- dprintk("%s: start\n", __func__);
status = decode_op_hdr(xdr_in, &op_nr);
if (unlikely(status))
return status;
- dprintk("%s: minorversion=%d nop=%d op_nr=%u\n",
- __func__, cps->minorversion, nop, op_nr);
-
switch (cps->minorversion) {
case 0:
status = preprocess_nfs4_op(op_nr, &op);
@@ -935,14 +873,13 @@ encode_hdr:
return res;
if (op->encode_res != NULL && status == 0)
status = op->encode_res(rqstp, xdr_out, resp);
- dprintk("%s: done, status = %d\n", __func__, ntohl(status));
return status;
}
/*
* Decode, process and encode a COMPOUND
*/
-static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *resp)
+static __be32 nfs4_callback_compound(struct svc_rqst *rqstp)
{
struct cb_compound_hdr_arg hdr_arg = { 0 };
struct cb_compound_hdr_res hdr_res = { NULL };
@@ -955,8 +892,6 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
};
unsigned int nops = 0;
- dprintk("%s: start\n", __func__);
-
xdr_init_decode(&xdr_in, &rqstp->rq_arg, rqstp->rq_arg.head[0].iov_base);
p = (__be32*)((char *)rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len);
@@ -980,7 +915,8 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
while (status == 0 && nops != hdr_arg.nops) {
status = process_op(nops, rqstp, &xdr_in,
- argp, &xdr_out, resp, &cps);
+ rqstp->rq_argp, &xdr_out, rqstp->rq_resp,
+ &cps);
nops++;
}
@@ -995,7 +931,6 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
*hdr_res.nops = htonl(nops);
nfs4_cb_free_slot(&cps);
nfs_put_client(cps.clp);
- dprintk("%s: done, status = %u\n", __func__, ntohl(status));
return rpc_success;
out_invalidcred:
@@ -1011,48 +946,46 @@ static struct callback_op callback_ops[] = {
.res_maxsize = CB_OP_HDR_RES_MAXSZ,
},
[OP_CB_GETATTR] = {
- .process_op = (callback_process_op_t)nfs4_callback_getattr,
- .decode_args = (callback_decode_arg_t)decode_getattr_args,
- .encode_res = (callback_encode_res_t)encode_getattr_res,
+ .process_op = nfs4_callback_getattr,
+ .decode_args = decode_getattr_args,
+ .encode_res = encode_getattr_res,
.res_maxsize = CB_OP_GETATTR_RES_MAXSZ,
},
[OP_CB_RECALL] = {
- .process_op = (callback_process_op_t)nfs4_callback_recall,
- .decode_args = (callback_decode_arg_t)decode_recall_args,
+ .process_op = nfs4_callback_recall,
+ .decode_args = decode_recall_args,
.res_maxsize = CB_OP_RECALL_RES_MAXSZ,
},
#if defined(CONFIG_NFS_V4_1)
[OP_CB_LAYOUTRECALL] = {
- .process_op = (callback_process_op_t)nfs4_callback_layoutrecall,
- .decode_args =
- (callback_decode_arg_t)decode_layoutrecall_args,
+ .process_op = nfs4_callback_layoutrecall,
+ .decode_args = decode_layoutrecall_args,
.res_maxsize = CB_OP_LAYOUTRECALL_RES_MAXSZ,
},
[OP_CB_NOTIFY_DEVICEID] = {
- .process_op = (callback_process_op_t)nfs4_callback_devicenotify,
- .decode_args =
- (callback_decode_arg_t)decode_devicenotify_args,
+ .process_op = nfs4_callback_devicenotify,
+ .decode_args = decode_devicenotify_args,
.res_maxsize = CB_OP_DEVICENOTIFY_RES_MAXSZ,
},
[OP_CB_SEQUENCE] = {
- .process_op = (callback_process_op_t)nfs4_callback_sequence,
- .decode_args = (callback_decode_arg_t)decode_cb_sequence_args,
- .encode_res = (callback_encode_res_t)encode_cb_sequence_res,
+ .process_op = nfs4_callback_sequence,
+ .decode_args = decode_cb_sequence_args,
+ .encode_res = encode_cb_sequence_res,
.res_maxsize = CB_OP_SEQUENCE_RES_MAXSZ,
},
[OP_CB_RECALL_ANY] = {
- .process_op = (callback_process_op_t)nfs4_callback_recallany,
- .decode_args = (callback_decode_arg_t)decode_recallany_args,
+ .process_op = nfs4_callback_recallany,
+ .decode_args = decode_recallany_args,
.res_maxsize = CB_OP_RECALLANY_RES_MAXSZ,
},
[OP_CB_RECALL_SLOT] = {
- .process_op = (callback_process_op_t)nfs4_callback_recallslot,
- .decode_args = (callback_decode_arg_t)decode_recallslot_args,
+ .process_op = nfs4_callback_recallslot,
+ .decode_args = decode_recallslot_args,
.res_maxsize = CB_OP_RECALLSLOT_RES_MAXSZ,
},
[OP_CB_NOTIFY_LOCK] = {
- .process_op = (callback_process_op_t)nfs4_callback_notify_lock,
- .decode_args = (callback_decode_arg_t)decode_notify_lock_args,
+ .process_op = nfs4_callback_notify_lock,
+ .decode_args = decode_notify_lock_args,
.res_maxsize = CB_OP_NOTIFY_LOCK_RES_MAXSZ,
},
#endif /* CONFIG_NFS_V4_1 */
@@ -1061,36 +994,42 @@ static struct callback_op callback_ops[] = {
/*
* Define NFS4 callback procedures
*/
-static struct svc_procedure nfs4_callback_procedures1[] = {
+static const struct svc_procedure nfs4_callback_procedures1[] = {
[CB_NULL] = {
.pc_func = nfs4_callback_null,
- .pc_decode = (kxdrproc_t)nfs4_decode_void,
- .pc_encode = (kxdrproc_t)nfs4_encode_void,
+ .pc_decode = nfs4_decode_void,
+ .pc_encode = nfs4_encode_void,
.pc_xdrressize = 1,
},
[CB_COMPOUND] = {
.pc_func = nfs4_callback_compound,
- .pc_encode = (kxdrproc_t)nfs4_encode_void,
+ .pc_encode = nfs4_encode_void,
.pc_argsize = 256,
.pc_ressize = 256,
.pc_xdrressize = NFS4_CALLBACK_BUFSIZE,
}
};
-struct svc_version nfs4_callback_version1 = {
+static unsigned int nfs4_callback_count1[ARRAY_SIZE(nfs4_callback_procedures1)];
+const struct svc_version nfs4_callback_version1 = {
.vs_vers = 1,
.vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
.vs_proc = nfs4_callback_procedures1,
+ .vs_count = nfs4_callback_count1,
.vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
.vs_dispatch = NULL,
- .vs_hidden = 1,
+ .vs_hidden = true,
+ .vs_need_cong_ctrl = true,
};
-struct svc_version nfs4_callback_version4 = {
+static unsigned int nfs4_callback_count4[ARRAY_SIZE(nfs4_callback_procedures1)];
+const struct svc_version nfs4_callback_version4 = {
.vs_vers = 4,
.vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
.vs_proc = nfs4_callback_procedures1,
+ .vs_count = nfs4_callback_count4,
.vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
.vs_dispatch = NULL,
- .vs_hidden = 1,
+ .vs_hidden = true,
+ .vs_need_cong_ctrl = true,
};
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 91a8d610ba0f..efebe6cf4378 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -218,6 +218,7 @@ static void nfs_cb_idr_remove_locked(struct nfs_client *clp)
static void pnfs_init_server(struct nfs_server *server)
{
rpc_init_wait_queue(&server->roc_rpcwaitq, "pNFS ROC");
+ rpc_init_wait_queue(&server->uoc_rpcwaitq, "NFS UOC");
}
#else
@@ -240,8 +241,6 @@ static void pnfs_init_server(struct nfs_server *server)
*/
void nfs_free_client(struct nfs_client *clp)
{
- dprintk("--> nfs_free_client(%u)\n", clp->rpc_ops->version);
-
nfs_fscache_release_client_cookie(clp);
/* -EIO all pending I/O */
@@ -256,8 +255,6 @@ void nfs_free_client(struct nfs_client *clp)
kfree(clp->cl_hostname);
kfree(clp->cl_acceptor);
kfree(clp);
-
- dprintk("<-- nfs_free_client()\n");
}
EXPORT_SYMBOL_GPL(nfs_free_client);
@@ -271,7 +268,6 @@ void nfs_put_client(struct nfs_client *clp)
if (!clp)
return;
- dprintk("--> nfs_put_client({%d})\n", atomic_read(&clp->cl_count));
nn = net_generic(clp->cl_net, nfs_net_id);
if (atomic_dec_and_lock(&clp->cl_count, &nn->nfs_client_lock)) {
@@ -325,10 +321,33 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat
return NULL;
}
-static bool nfs_client_init_is_complete(const struct nfs_client *clp)
+/*
+ * Return true if @clp is done initializing, false if still working on it.
+ *
+ * Use nfs_client_init_status to check if it was successful.
+ */
+bool nfs_client_init_is_complete(const struct nfs_client *clp)
{
return clp->cl_cons_state <= NFS_CS_READY;
}
+EXPORT_SYMBOL_GPL(nfs_client_init_is_complete);
+
+/*
+ * Return 0 if @clp was successfully initialized, -errno otherwise.
+ *
+ * This must be called *after* nfs_client_init_is_complete() returns true,
+ * otherwise it will pop WARN_ON_ONCE and return -EINVAL
+ */
+int nfs_client_init_status(const struct nfs_client *clp)
+{
+ /* called without checking nfs_client_init_is_complete */
+ if (clp->cl_cons_state > NFS_CS_READY) {
+ WARN_ON_ONCE(1);
+ return -EINVAL;
+ }
+ return clp->cl_cons_state;
+}
+EXPORT_SYMBOL_GPL(nfs_client_init_status);
int nfs_wait_client_init_complete(const struct nfs_client *clp)
{
@@ -359,9 +378,6 @@ nfs_found_client(const struct nfs_client_initdata *cl_init,
}
smp_rmb();
-
- dprintk("<-- %s found nfs_client %p for %s\n",
- __func__, clp, cl_init->hostname ?: "");
return clp;
}
@@ -380,9 +396,6 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *cl_init)
return NULL;
}
- dprintk("--> nfs_get_client(%s,v%u)\n",
- cl_init->hostname, rpc_ops->version);
-
/* see if the client already exists */
do {
spin_lock(&nn->nfs_client_lock);
@@ -407,8 +420,6 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *cl_init)
new = rpc_ops->alloc_client(cl_init);
} while (!IS_ERR(new));
- dprintk("<-- nfs_get_client() Failed to find %s (%ld)\n",
- cl_init->hostname, PTR_ERR(new));
return new;
}
EXPORT_SYMBOL_GPL(nfs_get_client);
@@ -535,6 +546,7 @@ static int nfs_start_lockd(struct nfs_server *server)
.noresvport = server->flags & NFS_MOUNT_NORESVPORT ?
1 : 0,
.net = clp->cl_net,
+ .nlmclnt_ops = clp->cl_nfs_mod->rpc_ops->nlmclnt_ops,
};
if (nlm_init.nfs_version > 3)
@@ -601,27 +613,21 @@ struct nfs_client *nfs_init_client(struct nfs_client *clp,
{
int error;
- if (clp->cl_cons_state == NFS_CS_READY) {
- /* the client is already initialised */
- dprintk("<-- nfs_init_client() = 0 [already %p]\n", clp);
+ /* the client is already initialised */
+ if (clp->cl_cons_state == NFS_CS_READY)
return clp;
- }
/*
* Create a client RPC handle for doing FSSTAT with UNIX auth only
* - RFC 2623, sec 2.3.2
*/
error = nfs_create_rpc_client(clp, cl_init, RPC_AUTH_UNIX);
- if (error < 0)
- goto error;
- nfs_mark_client_ready(clp, NFS_CS_READY);
+ nfs_mark_client_ready(clp, error == 0 ? NFS_CS_READY : error);
+ if (error < 0) {
+ nfs_put_client(clp);
+ clp = ERR_PTR(error);
+ }
return clp;
-
-error:
- nfs_mark_client_ready(clp, error);
- nfs_put_client(clp);
- dprintk("<-- nfs_init_client() = xerror %d\n", error);
- return ERR_PTR(error);
}
EXPORT_SYMBOL_GPL(nfs_init_client);
@@ -645,8 +651,6 @@ static int nfs_init_server(struct nfs_server *server,
struct nfs_client *clp;
int error;
- dprintk("--> nfs_init_server()\n");
-
nfs_init_timeout_values(&timeparms, data->nfs_server.protocol,
data->timeo, data->retrans);
if (data->flags & NFS_MOUNT_NORESVPORT)
@@ -654,10 +658,8 @@ static int nfs_init_server(struct nfs_server *server,
/* Allocate or find a client reference we can use */
clp = nfs_get_client(&cl_init);
- if (IS_ERR(clp)) {
- dprintk("<-- nfs_init_server() = error %ld\n", PTR_ERR(clp));
+ if (IS_ERR(clp))
return PTR_ERR(clp);
- }
server->nfs_client = clp;
@@ -702,13 +704,11 @@ static int nfs_init_server(struct nfs_server *server,
server->mountd_protocol = data->mount_server.protocol;
server->namelen = data->namlen;
- dprintk("<-- nfs_init_server() = 0 [new %p]\n", clp);
return 0;
error:
server->nfs_client = NULL;
nfs_put_client(clp);
- dprintk("<-- nfs_init_server() = xerror %d\n", error);
return error;
}
@@ -738,9 +738,6 @@ static void nfs_server_set_fsinfo(struct nfs_server *server,
server->rsize = NFS_MAX_FILE_IO_SIZE;
server->rpages = (server->rsize + PAGE_SIZE - 1) >> PAGE_SHIFT;
- server->backing_dev_info.name = "nfs";
- server->backing_dev_info.ra_pages = server->rpages * NFS_MAX_READAHEAD;
-
if (server->wsize > max_rpc_payload)
server->wsize = max_rpc_payload;
if (server->wsize > NFS_MAX_FILE_IO_SIZE)
@@ -778,12 +775,10 @@ int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs
struct nfs_client *clp = server->nfs_client;
int error;
- dprintk("--> nfs_probe_fsinfo()\n");
-
if (clp->rpc_ops->set_capabilities != NULL) {
error = clp->rpc_ops->set_capabilities(server, mntfh);
if (error < 0)
- goto out_error;
+ return error;
}
fsinfo.fattr = fattr;
@@ -791,7 +786,7 @@ int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs
memset(fsinfo.layouttype, 0, sizeof(fsinfo.layouttype));
error = clp->rpc_ops->fsinfo(server, mntfh, &fsinfo);
if (error < 0)
- goto out_error;
+ return error;
nfs_server_set_fsinfo(server, &fsinfo);
@@ -806,12 +801,7 @@ int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs
server->namelen = pathinfo.max_namelen;
}
- dprintk("<-- nfs_probe_fsinfo() = 0\n");
return 0;
-
-out_error:
- dprintk("nfs_probe_fsinfo: error = %d\n", -error);
- return error;
}
EXPORT_SYMBOL_GPL(nfs_probe_fsinfo);
@@ -830,6 +820,7 @@ void nfs_server_copy_userdata(struct nfs_server *target, struct nfs_server *sour
target->caps = source->caps;
target->options = source->options;
target->auth_info = source->auth_info;
+ target->port = source->port;
}
EXPORT_SYMBOL_GPL(nfs_server_copy_userdata);
@@ -894,12 +885,6 @@ struct nfs_server *nfs_alloc_server(void)
return NULL;
}
- if (bdi_init(&server->backing_dev_info)) {
- nfs_free_iostats(server->io_stats);
- kfree(server);
- return NULL;
- }
-
ida_init(&server->openowner_id);
ida_init(&server->lockowner_id);
pnfs_init_server(server);
@@ -913,8 +898,6 @@ EXPORT_SYMBOL_GPL(nfs_alloc_server);
*/
void nfs_free_server(struct nfs_server *server)
{
- dprintk("--> nfs_free_server()\n");
-
nfs_server_remove_lists(server);
if (server->destroy != NULL)
@@ -930,10 +913,8 @@ void nfs_free_server(struct nfs_server *server)
ida_destroy(&server->lockowner_id);
ida_destroy(&server->openowner_id);
nfs_free_iostats(server->io_stats);
- bdi_destroy(&server->backing_dev_info);
kfree(server);
nfs_release_automount_timer();
- dprintk("<-- nfs_free_server()\n");
}
EXPORT_SYMBOL_GPL(nfs_free_server);
@@ -1013,10 +994,6 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source,
struct nfs_fattr *fattr_fsinfo;
int error;
- dprintk("--> nfs_clone_server(,%llx:%llx,)\n",
- (unsigned long long) fattr->fsid.major,
- (unsigned long long) fattr->fsid.minor);
-
server = nfs_alloc_server();
if (!server)
return ERR_PTR(-ENOMEM);
@@ -1048,10 +1025,6 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source,
if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
server->namelen = NFS4_MAXNAMLEN;
- dprintk("Cloned FSID: %llx:%llx\n",
- (unsigned long long) server->fsid.major,
- (unsigned long long) server->fsid.minor);
-
error = nfs_start_lockd(server);
if (error < 0)
goto out_free_server;
@@ -1060,13 +1033,11 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source,
server->mount_time = jiffies;
nfs_free_fattr(fattr_fsinfo);
- dprintk("<-- nfs_clone_server() = %p\n", server);
return server;
out_free_server:
nfs_free_fattr(fattr_fsinfo);
nfs_free_server(server);
- dprintk("<-- nfs_clone_server() = error %d\n", error);
return ERR_PTR(error);
}
EXPORT_SYMBOL_GPL(nfs_clone_server);
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index fad81041f5ab..3522b1249019 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -57,7 +57,7 @@ static void nfs_readdir_clear_array(struct page*);
const struct file_operations nfs_dir_operations = {
.llseek = nfs_llseek_dir,
.read = generic_read_dir,
- .iterate_shared = nfs_readdir,
+ .iterate = nfs_readdir,
.open = nfs_opendir,
.release = nfs_closedir,
.fsync = nfs_fsync_dir,
@@ -145,14 +145,13 @@ struct nfs_cache_array_entry {
};
struct nfs_cache_array {
- atomic_t refcount;
int size;
int eof_index;
u64 last_cookie;
struct nfs_cache_array_entry array[0];
};
-typedef int (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, int);
+typedef int (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, bool);
typedef struct {
struct file *file;
struct page *page;
@@ -166,32 +165,11 @@ typedef struct {
unsigned long timestamp;
unsigned long gencount;
unsigned int cache_entry_index;
- unsigned int plus:1;
- unsigned int eof:1;
+ bool plus;
+ bool eof;
} nfs_readdir_descriptor_t;
/*
- * The caller is responsible for calling nfs_readdir_release_array(page)
- */
-static
-struct nfs_cache_array *nfs_readdir_get_array(struct page *page)
-{
- void *ptr;
- if (page == NULL)
- return ERR_PTR(-EIO);
- ptr = kmap(page);
- if (ptr == NULL)
- return ERR_PTR(-ENOMEM);
- return ptr;
-}
-
-static
-void nfs_readdir_release_array(struct page *page)
-{
- kunmap(page);
-}
-
-/*
* we are freeing strings created by nfs_add_to_readdir_array()
*/
static
@@ -201,18 +179,9 @@ void nfs_readdir_clear_array(struct page *page)
int i;
array = kmap_atomic(page);
- if (atomic_dec_and_test(&array->refcount))
- for (i = 0; i < array->size; i++)
- kfree(array->array[i].string.name);
- kunmap_atomic(array);
-}
-
-static bool grab_page(struct page *page)
-{
- struct nfs_cache_array *array = kmap_atomic(page);
- bool res = atomic_inc_not_zero(&array->refcount);
+ for (i = 0; i < array->size; i++)
+ kfree(array->array[i].string.name);
kunmap_atomic(array);
- return res;
}
/*
@@ -239,13 +208,10 @@ int nfs_readdir_make_qstr(struct qstr *string, const char *name, unsigned int le
static
int nfs_readdir_add_to_array(struct nfs_entry *entry, struct page *page)
{
- struct nfs_cache_array *array = nfs_readdir_get_array(page);
+ struct nfs_cache_array *array = kmap(page);
struct nfs_cache_array_entry *cache_entry;
int ret;
- if (IS_ERR(array))
- return PTR_ERR(array);
-
cache_entry = &array->array[array->size];
/* Check that this entry lies within the page bounds */
@@ -264,7 +230,7 @@ int nfs_readdir_add_to_array(struct nfs_entry *entry, struct page *page)
if (entry->eof != 0)
array->eof_index = array->size;
out:
- nfs_readdir_release_array(page);
+ kunmap(page);
return ret;
}
@@ -353,11 +319,7 @@ int nfs_readdir_search_array(nfs_readdir_descriptor_t *desc)
struct nfs_cache_array *array;
int status;
- array = nfs_readdir_get_array(desc->page);
- if (IS_ERR(array)) {
- status = PTR_ERR(array);
- goto out;
- }
+ array = kmap(desc->page);
if (*desc->dir_cookie == 0)
status = nfs_readdir_search_for_pos(array, desc);
@@ -369,8 +331,7 @@ int nfs_readdir_search_array(nfs_readdir_descriptor_t *desc)
desc->current_index += array->size;
desc->page_index++;
}
- nfs_readdir_release_array(desc->page);
-out:
+ kunmap(desc->page);
return status;
}
@@ -394,7 +355,7 @@ int nfs_readdir_xdr_filler(struct page **pages, nfs_readdir_descriptor_t *desc,
if (error == -ENOTSUPP && desc->plus) {
NFS_SERVER(inode)->caps &= ~NFS_CAP_READDIRPLUS;
clear_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
- desc->plus = 0;
+ desc->plus = false;
goto again;
}
goto error;
@@ -596,7 +557,7 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en
count++;
- if (desc->plus != 0)
+ if (desc->plus)
nfs_prime_dcache(file_dentry(desc->file), entry);
status = nfs_readdir_add_to_array(entry, page);
@@ -606,13 +567,10 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en
out_nopages:
if (count == 0 || (status == -EBADCOOKIE && entry->eof != 0)) {
- array = nfs_readdir_get_array(page);
- if (!IS_ERR(array)) {
- array->eof_index = array->size;
- status = 0;
- nfs_readdir_release_array(page);
- } else
- status = PTR_ERR(array);
+ array = kmap(page);
+ array->eof_index = array->size;
+ status = 0;
+ kunmap(page);
}
put_page(scratch);
@@ -674,13 +632,8 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
goto out;
}
- array = nfs_readdir_get_array(page);
- if (IS_ERR(array)) {
- status = PTR_ERR(array);
- goto out_label_free;
- }
+ array = kmap(page);
memset(array, 0, sizeof(struct nfs_cache_array));
- atomic_set(&array->refcount, 1);
array->eof_index = -1;
status = nfs_readdir_alloc_pages(pages, array_size);
@@ -703,8 +656,7 @@ int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page,
nfs_readdir_free_pages(pages, array_size);
out_release_array:
- nfs_readdir_release_array(page);
-out_label_free:
+ kunmap(page);
nfs4_label_free(entry.label);
out:
nfs_free_fattr(entry.fattr);
@@ -743,7 +695,8 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page* page)
static
void cache_page_release(nfs_readdir_descriptor_t *desc)
{
- nfs_readdir_clear_array(desc->page);
+ if (!desc->page->mapping)
+ nfs_readdir_clear_array(desc->page);
put_page(desc->page);
desc->page = NULL;
}
@@ -751,16 +704,8 @@ void cache_page_release(nfs_readdir_descriptor_t *desc)
static
struct page *get_cache_page(nfs_readdir_descriptor_t *desc)
{
- struct page *page;
-
- for (;;) {
- page = read_cache_page(desc->file->f_mapping,
+ return read_cache_page(desc->file->f_mapping,
desc->page_index, (filler_t *)nfs_readdir_filler, desc);
- if (IS_ERR(page) || grab_page(page))
- break;
- put_page(page);
- }
- return page;
}
/*
@@ -809,12 +754,7 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc)
struct nfs_cache_array *array = NULL;
struct nfs_open_dir_context *ctx = file->private_data;
- array = nfs_readdir_get_array(desc->page);
- if (IS_ERR(array)) {
- res = PTR_ERR(array);
- goto out;
- }
-
+ array = kmap(desc->page);
for (i = desc->cache_entry_index; i < array->size; i++) {
struct nfs_cache_array_entry *ent;
@@ -835,8 +775,7 @@ int nfs_do_filldir(nfs_readdir_descriptor_t *desc)
if (array->eof_index >= 0)
desc->eof = 1;
- nfs_readdir_release_array(desc->page);
-out:
+ kunmap(desc->page);
cache_page_release(desc);
dfprintk(DIRCACHE, "NFS: nfs_do_filldir() filling ended @ cookie %Lu; returning = %d\n",
(unsigned long long)*desc->dir_cookie, res);
@@ -921,7 +860,7 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx)
desc->ctx = ctx;
desc->dir_cookie = &dir_ctx->dir_cookie;
desc->decode = NFS_PROTO(inode)->decode_dirent;
- desc->plus = nfs_use_readdirplus(inode, ctx) ? 1 : 0;
+ desc->plus = nfs_use_readdirplus(inode, ctx);
if (ctx->pos == 0 || nfs_attribute_cache_expired(inode))
res = nfs_revalidate_mapping(inode, file->f_mapping);
@@ -946,8 +885,8 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx)
clear_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
nfs_zap_caches(inode);
desc->page_index = 0;
- desc->plus = 0;
- desc->eof = 0;
+ desc->plus = false;
+ desc->eof = false;
continue;
}
if (res < 0)
@@ -966,11 +905,13 @@ out:
static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence)
{
+ struct inode *inode = file_inode(filp);
struct nfs_open_dir_context *dir_ctx = filp->private_data;
dfprintk(FILE, "NFS: llseek dir(%pD2, %lld, %d)\n",
filp, offset, whence);
+ inode_lock(inode);
switch (whence) {
case 1:
offset += filp->f_pos;
@@ -978,13 +919,16 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence)
if (offset >= 0)
break;
default:
- return -EINVAL;
+ offset = -EINVAL;
+ goto out;
}
if (offset != filp->f_pos) {
filp->f_pos = offset;
dir_ctx->dir_cookie = 0;
dir_ctx->duped = 0;
}
+out:
+ inode_unlock(inode);
return offset;
}
@@ -1171,11 +1115,13 @@ static int nfs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
/* Force a full look up iff the parent directory has changed */
if (!nfs_is_exclusive_create(dir, flags) &&
nfs_check_verifier(dir, dentry, flags & LOOKUP_RCU)) {
-
- if (nfs_lookup_verify_inode(inode, flags)) {
+ error = nfs_lookup_verify_inode(inode, flags);
+ if (error) {
if (flags & LOOKUP_RCU)
return -ECHILD;
- goto out_zap_parent;
+ if (error == -ESTALE)
+ goto out_zap_parent;
+ goto out_error;
}
nfs_advise_use_readdirplus(dir);
goto out_valid;
@@ -1200,8 +1146,10 @@ static int nfs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
trace_nfs_lookup_revalidate_enter(dir, dentry, flags);
error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label);
trace_nfs_lookup_revalidate_exit(dir, dentry, flags, error);
- if (error)
+ if (error == -ESTALE || error == -ENOENT)
goto out_bad;
+ if (error)
+ goto out_error;
if (nfs_compare_fh(NFS_FH(inode), fhandle))
goto out_bad;
if ((error = nfs_refresh_inode(inode, fattr)) != 0)
@@ -1483,8 +1431,10 @@ static int nfs_finish_open(struct nfs_open_context *ctx,
err = finish_open(file, dentry, do_open, opened);
if (err)
goto out;
- nfs_file_set_open_context(file, ctx);
-
+ if (S_ISREG(file->f_path.dentry->d_inode->i_mode))
+ nfs_file_set_open_context(file, ctx);
+ else
+ err = -ESTALE;
out:
return err;
}
@@ -1568,7 +1518,7 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry,
d_drop(dentry);
switch (err) {
case -ENOENT:
- d_add(dentry, NULL);
+ d_splice_alias(NULL, dentry);
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
break;
case -EISDIR:
@@ -2091,7 +2041,11 @@ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
}
error = rpc_wait_for_completion_task(task);
- if (error == 0)
+ if (error != 0) {
+ ((struct nfs_renamedata *)task->tk_calldata)->cancelled = 1;
+ /* Paired with the atomic_dec_and_test() barrier in rpc_do_put_task() */
+ smp_wmb();
+ } else
error = task->tk_status;
rpc_put_task(task);
nfs_mark_for_revalidate(old_inode);
@@ -2103,6 +2057,12 @@ out:
if (!error) {
if (new_inode != NULL)
nfs_drop_nlink(new_inode);
+ /*
+ * The d_move() should be here instead of in an async RPC completion
+ * handler because we need the proper locks to move the dentry. If
+ * we're interrupted by a signal, the async RPC completion handler
+ * should mark the directories for revalidation.
+ */
d_move(old_dentry, new_dentry);
nfs_set_verifier(new_dentry,
nfs_save_change_attribute(new_dir));
@@ -2412,16 +2372,40 @@ void nfs_access_add_cache(struct inode *inode, struct nfs_access_entry *set)
}
EXPORT_SYMBOL_GPL(nfs_access_add_cache);
+#define NFS_MAY_READ (NFS4_ACCESS_READ)
+#define NFS_MAY_WRITE (NFS4_ACCESS_MODIFY | \
+ NFS4_ACCESS_EXTEND | \
+ NFS4_ACCESS_DELETE)
+#define NFS_FILE_MAY_WRITE (NFS4_ACCESS_MODIFY | \
+ NFS4_ACCESS_EXTEND)
+#define NFS_DIR_MAY_WRITE NFS_MAY_WRITE
+#define NFS_MAY_LOOKUP (NFS4_ACCESS_LOOKUP)
+#define NFS_MAY_EXECUTE (NFS4_ACCESS_EXECUTE)
+static int
+nfs_access_calc_mask(u32 access_result, umode_t umode)
+{
+ int mask = 0;
+
+ if (access_result & NFS_MAY_READ)
+ mask |= MAY_READ;
+ if (S_ISDIR(umode)) {
+ if ((access_result & NFS_DIR_MAY_WRITE) == NFS_DIR_MAY_WRITE)
+ mask |= MAY_WRITE;
+ if ((access_result & NFS_MAY_LOOKUP) == NFS_MAY_LOOKUP)
+ mask |= MAY_EXEC;
+ } else if (S_ISREG(umode)) {
+ if ((access_result & NFS_FILE_MAY_WRITE) == NFS_FILE_MAY_WRITE)
+ mask |= MAY_WRITE;
+ if ((access_result & NFS_MAY_EXECUTE) == NFS_MAY_EXECUTE)
+ mask |= MAY_EXEC;
+ } else if (access_result & NFS_MAY_WRITE)
+ mask |= MAY_WRITE;
+ return mask;
+}
+
void nfs_access_set_mask(struct nfs_access_entry *entry, u32 access_result)
{
- entry->mask = 0;
- if (access_result & NFS4_ACCESS_READ)
- entry->mask |= MAY_READ;
- if (access_result &
- (NFS4_ACCESS_MODIFY | NFS4_ACCESS_EXTEND | NFS4_ACCESS_DELETE))
- entry->mask |= MAY_WRITE;
- if (access_result & (NFS4_ACCESS_LOOKUP|NFS4_ACCESS_EXECUTE))
- entry->mask |= MAY_EXEC;
+ entry->mask = access_result;
}
EXPORT_SYMBOL_GPL(nfs_access_set_mask);
@@ -2429,6 +2413,7 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
{
struct nfs_access_entry cache;
bool may_block = (mask & MAY_NOT_BLOCK) == 0;
+ int cache_mask;
int status;
trace_nfs_access_enter(inode);
@@ -2444,7 +2429,8 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
goto out;
/* Be clever: ask server to check for all possible rights */
- cache.mask = MAY_EXEC | MAY_WRITE | MAY_READ;
+ cache.mask = NFS_MAY_LOOKUP | NFS_MAY_EXECUTE
+ | NFS_MAY_WRITE | NFS_MAY_READ;
cache.cred = cred;
cache.jiffies = jiffies;
status = NFS_PROTO(inode)->access(inode, &cache);
@@ -2458,7 +2444,8 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
}
nfs_access_add_cache(inode, &cache);
out_cached:
- if ((mask & ~cache.mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) != 0)
+ cache_mask = nfs_access_calc_mask(cache.mask, inode->i_mode);
+ if ((mask & ~cache_mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) != 0)
status = -EACCES;
out:
trace_nfs_access_exit(inode, status);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index aab32fc3d6a8..6fb9fad2d1e6 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -392,16 +392,6 @@ static void nfs_direct_complete(struct nfs_direct_req *dreq)
nfs_direct_req_release(dreq);
}
-static void nfs_direct_readpage_release(struct nfs_page *req)
-{
- dprintk("NFS: direct read done (%s/%llu %d@%lld)\n",
- req->wb_context->dentry->d_sb->s_id,
- (unsigned long long)NFS_FILEID(d_inode(req->wb_context->dentry)),
- req->wb_bytes,
- (long long)req_offset(req));
- nfs_release_request(req);
-}
-
static void nfs_direct_read_completion(struct nfs_pgio_header *hdr)
{
unsigned long bytes = 0;
@@ -426,7 +416,7 @@ static void nfs_direct_read_completion(struct nfs_pgio_header *hdr)
set_page_dirty(page);
bytes += req->wb_bytes;
nfs_list_remove_request(req);
- nfs_direct_readpage_release(req);
+ nfs_release_request(req);
}
out_put:
if (put_dreq(dreq))
@@ -537,7 +527,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
if (put_dreq(dreq))
nfs_direct_complete(dreq);
- return 0;
+ return requested_bytes;
}
/**
@@ -566,7 +556,7 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter)
struct inode *inode = mapping->host;
struct nfs_direct_req *dreq;
struct nfs_lock_context *l_ctx;
- ssize_t result = -EINVAL;
+ ssize_t result = -EINVAL, requested;
size_t count = iov_iter_count(iter);
nfs_add_stats(mapping->host, NFSIOS_DIRECTREADBYTES, count);
@@ -600,14 +590,19 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter)
nfs_start_io_direct(inode);
NFS_I(inode)->read_io += count;
- result = nfs_direct_read_schedule_iovec(dreq, iter, iocb->ki_pos);
+ requested = nfs_direct_read_schedule_iovec(dreq, iter, iocb->ki_pos);
nfs_end_io_direct(inode);
- if (!result) {
+ if (requested > 0) {
result = nfs_direct_wait(dreq);
- if (result > 0)
+ if (result > 0) {
+ requested -= result;
iocb->ki_pos += result;
+ }
+ iov_iter_revert(iter, requested);
+ } else {
+ result = requested;
}
out_release:
@@ -695,16 +690,9 @@ static void nfs_direct_commit_complete(struct nfs_commit_data *data)
int status = data->task.tk_status;
nfs_init_cinfo_from_dreq(&cinfo, dreq);
- if (status < 0) {
- dprintk("NFS: %5u commit failed with error %d.\n",
- data->task.tk_pid, status);
+ if (status < 0 || nfs_direct_cmp_commit_data_verf(dreq, data))
dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
- } else if (nfs_direct_cmp_commit_data_verf(dreq, data)) {
- dprintk("NFS: %5u commit verify failed\n", data->task.tk_pid);
- dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
- }
- dprintk("NFS: %5u commit returned %d\n", data->task.tk_pid, status);
while (!list_empty(&data->pages)) {
req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
@@ -954,7 +942,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
if (put_dreq(dreq))
nfs_direct_write_complete(dreq);
- return 0;
+ return requested_bytes;
}
/**
@@ -979,7 +967,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
*/
ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter)
{
- ssize_t result = -EINVAL;
+ ssize_t result = -EINVAL, requested;
size_t count;
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
@@ -1022,7 +1010,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter)
nfs_start_io_direct(inode);
- result = nfs_direct_write_schedule_iovec(dreq, iter, pos);
+ requested = nfs_direct_write_schedule_iovec(dreq, iter, pos);
if (mapping->nrpages) {
invalidate_inode_pages2_range(mapping,
@@ -1031,13 +1019,17 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter)
nfs_end_io_direct(inode);
- if (!result) {
+ if (requested > 0) {
result = nfs_direct_wait(dreq);
if (result > 0) {
+ requested -= result;
iocb->ki_pos = pos + result;
/* XXX: should check the generic_write_sync retval */
generic_write_sync(iocb, result);
}
+ iov_iter_revert(iter, requested);
+ } else {
+ result = requested;
}
out_release:
nfs_direct_req_release(dreq);
diff --git a/fs/nfs/export.c b/fs/nfs/export.c
new file mode 100644
index 000000000000..249cb96cc5b5
--- /dev/null
+++ b/fs/nfs/export.c
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2015, Primary Data, Inc. All rights reserved.
+ *
+ * Tao Peng <[email protected]>
+ */
+#include <linux/dcache.h>
+#include <linux/exportfs.h>
+#include <linux/nfs.h>
+#include <linux/nfs_fs.h>
+
+#include "internal.h"
+#include "nfstrace.h"
+
+#define NFSDBG_FACILITY NFSDBG_VFS
+
+enum {
+ FILEID_HIGH_OFF = 0, /* inode fileid high */
+ FILEID_LOW_OFF, /* inode fileid low */
+ FILE_I_TYPE_OFF, /* inode type */
+ EMBED_FH_OFF /* embeded server fh */
+};
+
+
+static struct nfs_fh *nfs_exp_embedfh(__u32 *p)
+{
+ return (struct nfs_fh *)(p + EMBED_FH_OFF);
+}
+
+/*
+ * Let's break subtree checking for now... otherwise we'll have to embed parent fh
+ * but there might not be enough space.
+ */
+static int
+nfs_encode_fh(struct inode *inode, __u32 *p, int *max_len, struct inode *parent)
+{
+ struct nfs_fh *server_fh = NFS_FH(inode);
+ struct nfs_fh *clnt_fh = nfs_exp_embedfh(p);
+ size_t fh_size = offsetof(struct nfs_fh, data) + server_fh->size;
+ int len = EMBED_FH_OFF + XDR_QUADLEN(fh_size);
+
+ dprintk("%s: max fh len %d inode %p parent %p",
+ __func__, *max_len, inode, parent);
+
+ if (*max_len < len || IS_AUTOMOUNT(inode)) {
+ dprintk("%s: fh len %d too small, required %d\n",
+ __func__, *max_len, len);
+ *max_len = len;
+ return FILEID_INVALID;
+ }
+ if (IS_AUTOMOUNT(inode)) {
+ *max_len = FILEID_INVALID;
+ goto out;
+ }
+
+ p[FILEID_HIGH_OFF] = NFS_FILEID(inode) >> 32;
+ p[FILEID_LOW_OFF] = NFS_FILEID(inode);
+ p[FILE_I_TYPE_OFF] = inode->i_mode & S_IFMT;
+ p[len - 1] = 0; /* Padding */
+ nfs_copy_fh(clnt_fh, server_fh);
+ *max_len = len;
+out:
+ dprintk("%s: result fh fileid %llu mode %u size %d\n",
+ __func__, NFS_FILEID(inode), inode->i_mode, *max_len);
+ return *max_len;
+}
+
+static struct dentry *
+nfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
+ int fh_len, int fh_type)
+{
+ struct nfs4_label *label = NULL;
+ struct nfs_fattr *fattr = NULL;
+ struct nfs_fh *server_fh = nfs_exp_embedfh(fid->raw);
+ size_t fh_size = offsetof(struct nfs_fh, data) + server_fh->size;
+ const struct nfs_rpc_ops *rpc_ops;
+ struct dentry *dentry;
+ struct inode *inode;
+ int len = EMBED_FH_OFF + XDR_QUADLEN(fh_size);
+ u32 *p = fid->raw;
+ int ret;
+
+ /* NULL translates to ESTALE */
+ if (fh_len < len || fh_type != len)
+ return NULL;
+
+ fattr = nfs_alloc_fattr();
+ if (fattr == NULL) {
+ dentry = ERR_PTR(-ENOMEM);
+ goto out;
+ }
+
+ fattr->fileid = ((u64)p[FILEID_HIGH_OFF] << 32) + p[FILEID_LOW_OFF];
+ fattr->mode = p[FILE_I_TYPE_OFF];
+ fattr->valid |= NFS_ATTR_FATTR_FILEID | NFS_ATTR_FATTR_TYPE;
+
+ dprintk("%s: fileid %llu mode %d\n", __func__, fattr->fileid, fattr->mode);
+
+ inode = nfs_ilookup(sb, fattr, server_fh);
+ if (inode)
+ goto out_found;
+
+ label = nfs4_label_alloc(NFS_SB(sb), GFP_KERNEL);
+ if (IS_ERR(label)) {
+ dentry = ERR_CAST(label);
+ goto out_free_fattr;
+ }
+
+ rpc_ops = NFS_SB(sb)->nfs_client->rpc_ops;
+ ret = rpc_ops->getattr(NFS_SB(sb), server_fh, fattr, label);
+ if (ret) {
+ dprintk("%s: getattr failed %d\n", __func__, ret);
+ dentry = ERR_PTR(ret);
+ goto out_free_label;
+ }
+
+ inode = nfs_fhget(sb, server_fh, fattr, label);
+
+out_found:
+ dentry = d_obtain_alias(inode);
+
+out_free_label:
+ nfs4_label_free(label);
+out_free_fattr:
+ nfs_free_fattr(fattr);
+out:
+ return dentry;
+}
+
+static struct dentry *
+nfs_get_parent(struct dentry *dentry)
+{
+ int ret;
+ struct inode *inode = d_inode(dentry), *pinode;
+ struct super_block *sb = inode->i_sb;
+ struct nfs_server *server = NFS_SB(sb);
+ struct nfs_fattr *fattr = NULL;
+ struct nfs4_label *label = NULL;
+ struct dentry *parent;
+ struct nfs_rpc_ops const *ops = server->nfs_client->rpc_ops;
+ struct nfs_fh fh;
+
+ if (!ops->lookupp)
+ return ERR_PTR(-EACCES);
+
+ fattr = nfs_alloc_fattr();
+ if (fattr == NULL) {
+ parent = ERR_PTR(-ENOMEM);
+ goto out;
+ }
+
+ label = nfs4_label_alloc(server, GFP_KERNEL);
+ if (IS_ERR(label)) {
+ parent = ERR_CAST(label);
+ goto out_free_fattr;
+ }
+
+ ret = ops->lookupp(inode, &fh, fattr, label);
+ if (ret) {
+ parent = ERR_PTR(ret);
+ goto out_free_label;
+ }
+
+ pinode = nfs_fhget(sb, &fh, fattr, label);
+ parent = d_obtain_alias(pinode);
+out_free_label:
+ nfs4_label_free(label);
+out_free_fattr:
+ nfs_free_fattr(fattr);
+out:
+ return parent;
+}
+
+const struct export_operations nfs_export_ops = {
+ .encode_fh = nfs_encode_fh,
+ .fh_to_dentry = nfs_fh_to_dentry,
+ .get_parent = nfs_get_parent,
+};
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 26dbe8b0c10d..5713eb32a45e 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -482,7 +482,7 @@ static int nfs_launder_page(struct page *page)
inode->i_ino, (long long)page_offset(page));
nfs_fscache_wait_on_page_write(nfsi, page);
- return nfs_wb_launder_page(inode, page);
+ return nfs_wb_page(inode, page);
}
static int nfs_swap_activate(struct swap_info_struct *sis, struct file *file,
@@ -528,10 +528,10 @@ const struct address_space_operations nfs_file_aops = {
* writable, implying that someone is about to modify the page through a
* shared-writable mapping
*/
-static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
+static int nfs_vm_page_mkwrite(struct vm_fault *vmf)
{
struct page *page = vmf->page;
- struct file *filp = vma->vm_file;
+ struct file *filp = vmf->vma->vm_file;
struct inode *inode = file_inode(filp);
unsigned pagelen;
int ret = VM_FAULT_NOPAGE;
@@ -697,14 +697,14 @@ do_unlk(struct file *filp, int cmd, struct file_lock *fl, int is_local)
if (!IS_ERR(l_ctx)) {
status = nfs_iocounter_wait(l_ctx);
nfs_put_lock_context(l_ctx);
- if (status < 0)
+ /* NOTE: special case
+ * If we're signalled while cleaning up locks on process exit, we
+ * still need to complete the unlock.
+ */
+ if (status < 0 && !(fl->fl_flags & FL_CLOSE))
return status;
}
- /* NOTE: special case
- * If we're signalled while cleaning up locks on process exit, we
- * still need to complete the unlock.
- */
/*
* Use local locking if mounted with "-onolock" or with appropriate
* "-olocal_lock="
@@ -820,9 +820,23 @@ int nfs_flock(struct file *filp, int cmd, struct file_lock *fl)
if (NFS_SERVER(inode)->flags & NFS_MOUNT_LOCAL_FLOCK)
is_local = 1;
- /* We're simulating flock() locks using posix locks on the server */
- if (fl->fl_type == F_UNLCK)
+ /*
+ * VFS doesn't require the open mode to match a flock() lock's type.
+ * NFS, however, may simulate flock() locking with posix locking which
+ * requires the open mode to match the lock type.
+ */
+ switch (fl->fl_type) {
+ case F_UNLCK:
return do_unlk(filp, cmd, fl, is_local);
+ case F_RDLCK:
+ if (!(filp->f_mode & FMODE_READ))
+ return -EBADF;
+ break;
+ case F_WRLCK:
+ if (!(filp->f_mode & FMODE_WRITE))
+ return -EBADF;
+ }
+
return do_setlk(filp, cmd, fl, is_local);
}
EXPORT_SYMBOL_GPL(nfs_flock);
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index a3fc48ba4931..44c638b7876c 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -126,32 +126,13 @@ static int filelayout_async_handle_error(struct rpc_task *task,
{
struct pnfs_layout_hdr *lo = lseg->pls_layout;
struct inode *inode = lo->plh_inode;
- struct nfs_server *mds_server = NFS_SERVER(inode);
struct nfs4_deviceid_node *devid = FILELAYOUT_DEVID_NODE(lseg);
- struct nfs_client *mds_client = mds_server->nfs_client;
struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table;
if (task->tk_status >= 0)
return 0;
switch (task->tk_status) {
- /* MDS state errors */
- case -NFS4ERR_DELEG_REVOKED:
- case -NFS4ERR_ADMIN_REVOKED:
- case -NFS4ERR_BAD_STATEID:
- case -NFS4ERR_OPENMODE:
- if (state == NULL)
- break;
- if (nfs4_schedule_stateid_recovery(mds_server, state) < 0)
- goto out_bad_stateid;
- goto wait_on_recovery;
- case -NFS4ERR_EXPIRED:
- if (state != NULL) {
- if (nfs4_schedule_stateid_recovery(mds_server, state) < 0)
- goto out_bad_stateid;
- }
- nfs4_schedule_lease_recovery(mds_client);
- goto wait_on_recovery;
/* DS session errors */
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
@@ -172,6 +153,7 @@ static int filelayout_async_handle_error(struct rpc_task *task,
case -NFS4ERR_RETRY_UNCACHED_REP:
break;
/* Invalidate Layout errors */
+ case -NFS4ERR_ACCESS:
case -NFS4ERR_PNFS_NO_LAYOUT:
case -ESTALE: /* mapped NFS4ERR_STALE */
case -EBADHANDLE: /* mapped NFS4ERR_BADHANDLE */
@@ -211,17 +193,8 @@ reset:
task->tk_status);
return -NFS4ERR_RESET_TO_MDS;
}
-out:
task->tk_status = 0;
return -EAGAIN;
-out_bad_stateid:
- task->tk_status = -EIO;
- return 0;
-wait_on_recovery:
- rpc_sleep_on(&mds_client->cl_rpcwaitq, task, NULL);
- if (test_bit(NFS4CLNT_MANAGER_RUNNING, &mds_client->cl_state) == 0)
- rpc_wake_up_queued_task(&mds_client->cl_rpcwaitq, task);
- goto out;
}
/* NFS_PROTO call done callback routines */
@@ -305,7 +278,7 @@ static void filelayout_read_prepare(struct rpc_task *task, void *data)
}
hdr->pgio_done_cb = filelayout_read_done_cb;
- if (nfs41_setup_sequence(hdr->ds_clp->cl_session,
+ if (nfs4_setup_sequence(hdr->ds_clp,
&hdr->args.seq_args,
&hdr->res.seq_res,
task))
@@ -403,7 +376,7 @@ static void filelayout_write_prepare(struct rpc_task *task, void *data)
rpc_exit(task, 0);
return;
}
- if (nfs41_setup_sequence(hdr->ds_clp->cl_session,
+ if (nfs4_setup_sequence(hdr->ds_clp,
&hdr->args.seq_args,
&hdr->res.seq_res,
task))
@@ -438,7 +411,7 @@ static void filelayout_commit_prepare(struct rpc_task *task, void *data)
{
struct nfs_commit_data *wdata = data;
- nfs41_setup_sequence(wdata->ds_clp->cl_session,
+ nfs4_setup_sequence(wdata->ds_clp,
&wdata->args.seq_args,
&wdata->res.seq_res,
task);
@@ -482,7 +455,7 @@ filelayout_read_pagelist(struct nfs_pgio_header *hdr)
u32 j, idx;
struct nfs_fh *fh;
- dprintk("--> %s ino %lu pgbase %u req %Zu@%llu\n",
+ dprintk("--> %s ino %lu pgbase %u req %zu@%llu\n",
__func__, hdr->inode->i_ino,
hdr->args.pgbase, (size_t)hdr->args.count, offset);
@@ -540,7 +513,7 @@ filelayout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
if (IS_ERR(ds_clnt))
return PNFS_NOT_ATTEMPTED;
- dprintk("%s ino %lu sync %d req %Zu@%llu DS: %s cl_count %d\n",
+ dprintk("%s ino %lu sync %d req %zu@%llu DS: %s cl_count %d\n",
__func__, hdr->inode->i_ino, sync, (size_t) hdr->args.count,
offset, ds->ds_remotestr, atomic_read(&ds->ds_clp->cl_count));
@@ -560,6 +533,59 @@ filelayout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
return PNFS_ATTEMPTED;
}
+static int
+filelayout_check_deviceid(struct pnfs_layout_hdr *lo,
+ struct nfs4_filelayout_segment *fl,
+ gfp_t gfp_flags)
+{
+ struct nfs4_deviceid_node *d;
+ struct nfs4_file_layout_dsaddr *dsaddr;
+ int status = -EINVAL;
+
+ /* Is the deviceid already set? If so, we're good. */
+ if (fl->dsaddr != NULL)
+ return 0;
+
+ /* find and reference the deviceid */
+ d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode), &fl->deviceid,
+ lo->plh_lc_cred, gfp_flags);
+ if (d == NULL)
+ goto out;
+
+ dsaddr = container_of(d, struct nfs4_file_layout_dsaddr, id_node);
+ /* Found deviceid is unavailable */
+ if (filelayout_test_devid_unavailable(&dsaddr->id_node))
+ goto out_put;
+
+ if (fl->first_stripe_index >= dsaddr->stripe_count) {
+ dprintk("%s Bad first_stripe_index %u\n",
+ __func__, fl->first_stripe_index);
+ goto out_put;
+ }
+
+ if ((fl->stripe_type == STRIPE_SPARSE &&
+ fl->num_fh > 1 && fl->num_fh != dsaddr->ds_num) ||
+ (fl->stripe_type == STRIPE_DENSE &&
+ fl->num_fh != dsaddr->stripe_count)) {
+ dprintk("%s num_fh %u not valid for given packing\n",
+ __func__, fl->num_fh);
+ goto out_put;
+ }
+ status = 0;
+
+ /*
+ * Atomic compare and xchange to ensure we don't scribble
+ * over a non-NULL pointer.
+ */
+ if (cmpxchg(&fl->dsaddr, NULL, dsaddr) != NULL)
+ goto out_put;
+out:
+ return status;
+out_put:
+ nfs4_fl_put_deviceid(dsaddr);
+ goto out;
+}
+
/*
* filelayout_check_layout()
*
@@ -572,11 +598,8 @@ static int
filelayout_check_layout(struct pnfs_layout_hdr *lo,
struct nfs4_filelayout_segment *fl,
struct nfs4_layoutget_res *lgr,
- struct nfs4_deviceid *id,
gfp_t gfp_flags)
{
- struct nfs4_deviceid_node *d;
- struct nfs4_file_layout_dsaddr *dsaddr;
int status = -EINVAL;
dprintk("--> %s\n", __func__);
@@ -601,41 +624,10 @@ filelayout_check_layout(struct pnfs_layout_hdr *lo,
goto out;
}
- /* find and reference the deviceid */
- d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode), id,
- lo->plh_lc_cred, gfp_flags);
- if (d == NULL)
- goto out;
-
- dsaddr = container_of(d, struct nfs4_file_layout_dsaddr, id_node);
- /* Found deviceid is unavailable */
- if (filelayout_test_devid_unavailable(&dsaddr->id_node))
- goto out_put;
-
- fl->dsaddr = dsaddr;
-
- if (fl->first_stripe_index >= dsaddr->stripe_count) {
- dprintk("%s Bad first_stripe_index %u\n",
- __func__, fl->first_stripe_index);
- goto out_put;
- }
-
- if ((fl->stripe_type == STRIPE_SPARSE &&
- fl->num_fh > 1 && fl->num_fh != dsaddr->ds_num) ||
- (fl->stripe_type == STRIPE_DENSE &&
- fl->num_fh != dsaddr->stripe_count)) {
- dprintk("%s num_fh %u not valid for given packing\n",
- __func__, fl->num_fh);
- goto out_put;
- }
-
status = 0;
out:
dprintk("--> %s returns %d\n", __func__, status);
return status;
-out_put:
- nfs4_fl_put_deviceid(dsaddr);
- goto out;
}
static void _filelayout_free_lseg(struct nfs4_filelayout_segment *fl)
@@ -657,7 +649,6 @@ static int
filelayout_decode_layout(struct pnfs_layout_hdr *flo,
struct nfs4_filelayout_segment *fl,
struct nfs4_layoutget_res *lgr,
- struct nfs4_deviceid *id,
gfp_t gfp_flags)
{
struct xdr_stream stream;
@@ -682,9 +673,9 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo,
if (unlikely(!p))
goto out_err;
- memcpy(id, p, sizeof(*id));
+ memcpy(&fl->deviceid, p, sizeof(fl->deviceid));
p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
- nfs4_print_deviceid(id);
+ nfs4_print_deviceid(&fl->deviceid);
nfl_util = be32_to_cpup(p++);
if (nfl_util & NFL4_UFLG_COMMIT_THRU_MDS)
@@ -831,15 +822,14 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid,
{
struct nfs4_filelayout_segment *fl;
int rc;
- struct nfs4_deviceid id;
dprintk("--> %s\n", __func__);
fl = kzalloc(sizeof(*fl), gfp_flags);
if (!fl)
return NULL;
- rc = filelayout_decode_layout(layoutid, fl, lgr, &id, gfp_flags);
- if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, &id, gfp_flags)) {
+ rc = filelayout_decode_layout(layoutid, fl, lgr, gfp_flags);
+ if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, gfp_flags)) {
_filelayout_free_lseg(fl);
return NULL;
}
@@ -888,18 +878,52 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev,
return min(stripe_unit - (unsigned int)stripe_offset, size);
}
+static struct pnfs_layout_segment *
+fl_pnfs_update_layout(struct inode *ino,
+ struct nfs_open_context *ctx,
+ loff_t pos,
+ u64 count,
+ enum pnfs_iomode iomode,
+ bool strict_iomode,
+ gfp_t gfp_flags)
+{
+ struct pnfs_layout_segment *lseg = NULL;
+ struct pnfs_layout_hdr *lo;
+ struct nfs4_filelayout_segment *fl;
+ int status;
+
+ lseg = pnfs_update_layout(ino, ctx, pos, count, iomode, strict_iomode,
+ gfp_flags);
+ if (!lseg)
+ lseg = ERR_PTR(-ENOMEM);
+ if (IS_ERR(lseg))
+ goto out;
+
+ lo = NFS_I(ino)->layout;
+ fl = FILELAYOUT_LSEG(lseg);
+
+ status = filelayout_check_deviceid(lo, fl, gfp_flags);
+ if (status) {
+ pnfs_put_lseg(lseg);
+ lseg = ERR_PTR(status);
+ }
+out:
+ return lseg;
+}
+
static void
filelayout_pg_init_read(struct nfs_pageio_descriptor *pgio,
struct nfs_page *req)
{
+ pnfs_generic_pg_check_layout(pgio);
if (!pgio->pg_lseg) {
- pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
- req->wb_context,
- 0,
- NFS4_MAX_UINT64,
- IOMODE_READ,
- false,
- GFP_KERNEL);
+ pgio->pg_lseg = fl_pnfs_update_layout(pgio->pg_inode,
+ req->wb_context,
+ 0,
+ NFS4_MAX_UINT64,
+ IOMODE_READ,
+ false,
+ GFP_KERNEL);
if (IS_ERR(pgio->pg_lseg)) {
pgio->pg_error = PTR_ERR(pgio->pg_lseg);
pgio->pg_lseg = NULL;
@@ -918,14 +942,15 @@ filelayout_pg_init_write(struct nfs_pageio_descriptor *pgio,
struct nfs_commit_info cinfo;
int status;
+ pnfs_generic_pg_check_layout(pgio);
if (!pgio->pg_lseg) {
- pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
- req->wb_context,
- 0,
- NFS4_MAX_UINT64,
- IOMODE_RW,
- false,
- GFP_NOFS);
+ pgio->pg_lseg = fl_pnfs_update_layout(pgio->pg_inode,
+ req->wb_context,
+ 0,
+ NFS4_MAX_UINT64,
+ IOMODE_RW,
+ false,
+ GFP_NOFS);
if (IS_ERR(pgio->pg_lseg)) {
pgio->pg_error = PTR_ERR(pgio->pg_lseg);
pgio->pg_lseg = NULL;
diff --git a/fs/nfs/filelayout/filelayout.h b/fs/nfs/filelayout/filelayout.h
index 2896cb833a11..79323b5dab0c 100644
--- a/fs/nfs/filelayout/filelayout.h
+++ b/fs/nfs/filelayout/filelayout.h
@@ -55,15 +55,16 @@ struct nfs4_file_layout_dsaddr {
};
struct nfs4_filelayout_segment {
- struct pnfs_layout_segment generic_hdr;
- u32 stripe_type;
- u32 commit_through_mds;
- u32 stripe_unit;
- u32 first_stripe_index;
- u64 pattern_offset;
- struct nfs4_file_layout_dsaddr *dsaddr; /* Point to GETDEVINFO data */
- unsigned int num_fh;
- struct nfs_fh **fh_array;
+ struct pnfs_layout_segment generic_hdr;
+ u32 stripe_type;
+ u32 commit_through_mds;
+ u32 stripe_unit;
+ u32 first_stripe_index;
+ u64 pattern_offset;
+ struct nfs4_deviceid deviceid;
+ struct nfs4_file_layout_dsaddr *dsaddr; /* Point to GETDEVINFO data */
+ unsigned int num_fh;
+ struct nfs_fh **fh_array;
};
struct nfs4_filelayout {
diff --git a/fs/nfs/filelayout/filelayoutdev.c b/fs/nfs/filelayout/filelayoutdev.c
index f956ca20a8a3..d913e818858f 100644
--- a/fs/nfs/filelayout/filelayoutdev.c
+++ b/fs/nfs/filelayout/filelayoutdev.c
@@ -266,6 +266,7 @@ nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx)
struct nfs4_deviceid_node *devid = FILELAYOUT_DEVID_NODE(lseg);
struct nfs4_pnfs_ds *ret = ds;
struct nfs_server *s = NFS_SERVER(lseg->pls_layout->plh_inode);
+ int status;
if (ds == NULL) {
printk(KERN_ERR "NFS: %s: No data server for offset index %d\n",
@@ -277,9 +278,14 @@ nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx)
if (ds->ds_clp)
goto out_test_devid;
- nfs4_pnfs_ds_connect(s, ds, devid, dataserver_timeo,
+ status = nfs4_pnfs_ds_connect(s, ds, devid, dataserver_timeo,
dataserver_retrans, 4,
s->nfs_client->cl_minorversion);
+ if (status) {
+ nfs4_mark_deviceid_unavailable(devid);
+ ret = NULL;
+ goto out;
+ }
out_test_devid:
if (ret->ds_clp == NULL ||
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 0ca4af8cca5d..b0fa83a60754 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -454,6 +454,7 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
goto out_err_free;
/* fh */
+ rc = -EIO;
p = xdr_inline_decode(&stream, 4);
if (!p)
goto out_err_free;
@@ -846,6 +847,7 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio,
int ds_idx;
retry:
+ pnfs_generic_pg_check_layout(pgio);
/* Use full layout for now */
if (!pgio->pg_lseg)
ff_layout_pg_get_read(pgio, req, false);
@@ -894,6 +896,7 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio,
int status;
retry:
+ pnfs_generic_pg_check_layout(pgio);
if (!pgio->pg_lseg) {
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
@@ -1047,37 +1050,10 @@ static int ff_layout_async_handle_error_v4(struct rpc_task *task,
{
struct pnfs_layout_hdr *lo = lseg->pls_layout;
struct inode *inode = lo->plh_inode;
- struct nfs_server *mds_server = NFS_SERVER(inode);
-
struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
- struct nfs_client *mds_client = mds_server->nfs_client;
struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table;
- if (task->tk_status >= 0)
- return 0;
-
switch (task->tk_status) {
- /* MDS state errors */
- case -NFS4ERR_DELEG_REVOKED:
- case -NFS4ERR_ADMIN_REVOKED:
- case -NFS4ERR_BAD_STATEID:
- if (state == NULL)
- break;
- nfs_remove_bad_delegation(state->inode, NULL);
- case -NFS4ERR_OPENMODE:
- if (state == NULL)
- break;
- if (nfs4_schedule_stateid_recovery(mds_server, state) < 0)
- goto out_bad_stateid;
- goto wait_on_recovery;
- case -NFS4ERR_EXPIRED:
- if (state != NULL) {
- if (nfs4_schedule_stateid_recovery(mds_server, state) < 0)
- goto out_bad_stateid;
- }
- nfs4_schedule_lease_recovery(mds_client);
- goto wait_on_recovery;
- /* DS session errors */
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
@@ -1137,17 +1113,8 @@ reset:
task->tk_status);
return -NFS4ERR_RESET_TO_MDS;
}
-out:
task->tk_status = 0;
return -EAGAIN;
-out_bad_stateid:
- task->tk_status = -EIO;
- return 0;
-wait_on_recovery:
- rpc_sleep_on(&mds_client->cl_rpcwaitq, task, NULL);
- if (test_bit(NFS4CLNT_MANAGER_RUNNING, &mds_client->cl_state) == 0)
- rpc_wake_up_queued_task(&mds_client->cl_rpcwaitq, task);
- goto out;
}
/* Retry all errors through either pNFS or MDS except for -EJUKEBOX */
@@ -1157,9 +1124,6 @@ static int ff_layout_async_handle_error_v3(struct rpc_task *task,
{
struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
- if (task->tk_status >= 0)
- return 0;
-
switch (task->tk_status) {
/* File access problems. Don't mark the device as unavailable */
case -EACCES:
@@ -1195,6 +1159,13 @@ static int ff_layout_async_handle_error(struct rpc_task *task,
{
int vers = clp->cl_nfs_mod->rpc_vers->number;
+ if (task->tk_status >= 0)
+ return 0;
+
+ /* Handle the case of an invalid layout segment */
+ if (!pnfs_is_valid_lseg(lseg))
+ return -NFS4ERR_RESET_TO_PNFS;
+
switch (vers) {
case 3:
return ff_layout_async_handle_error_v3(task, lseg, idx);
@@ -1384,30 +1355,14 @@ static void ff_layout_read_prepare_v3(struct rpc_task *task, void *data)
rpc_call_start(task);
}
-static int ff_layout_setup_sequence(struct nfs_client *ds_clp,
- struct nfs4_sequence_args *args,
- struct nfs4_sequence_res *res,
- struct rpc_task *task)
-{
- if (ds_clp->cl_session)
- return nfs41_setup_sequence(ds_clp->cl_session,
- args,
- res,
- task);
- return nfs40_setup_sequence(ds_clp->cl_slot_tbl,
- args,
- res,
- task);
-}
-
static void ff_layout_read_prepare_v4(struct rpc_task *task, void *data)
{
struct nfs_pgio_header *hdr = data;
- if (ff_layout_setup_sequence(hdr->ds_clp,
- &hdr->args.seq_args,
- &hdr->res.seq_res,
- task))
+ if (nfs4_setup_sequence(hdr->ds_clp,
+ &hdr->args.seq_args,
+ &hdr->res.seq_res,
+ task))
return;
if (ff_layout_read_prepare_common(task, hdr))
@@ -1578,10 +1533,10 @@ static void ff_layout_write_prepare_v4(struct rpc_task *task, void *data)
{
struct nfs_pgio_header *hdr = data;
- if (ff_layout_setup_sequence(hdr->ds_clp,
- &hdr->args.seq_args,
- &hdr->res.seq_res,
- task))
+ if (nfs4_setup_sequence(hdr->ds_clp,
+ &hdr->args.seq_args,
+ &hdr->res.seq_res,
+ task))
return;
if (ff_layout_write_prepare_common(task, hdr))
@@ -1667,10 +1622,10 @@ static void ff_layout_commit_prepare_v4(struct rpc_task *task, void *data)
{
struct nfs_commit_data *wdata = data;
- if (ff_layout_setup_sequence(wdata->ds_clp,
- &wdata->args.seq_args,
- &wdata->res.seq_res,
- task))
+ if (nfs4_setup_sequence(wdata->ds_clp,
+ &wdata->args.seq_args,
+ &wdata->res.seq_res,
+ task))
return;
ff_layout_commit_prepare_common(task, data);
}
@@ -1751,7 +1706,7 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr)
int vers;
struct nfs_fh *fh;
- dprintk("--> %s ino %lu pgbase %u req %Zu@%llu\n",
+ dprintk("--> %s ino %lu pgbase %u req %zu@%llu\n",
__func__, hdr->inode->i_ino,
hdr->args.pgbase, (size_t)hdr->args.count, offset);
@@ -1815,20 +1770,20 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
ds = nfs4_ff_layout_prepare_ds(lseg, idx, true);
if (!ds)
- return PNFS_NOT_ATTEMPTED;
+ goto out_failed;
ds_clnt = nfs4_ff_find_or_create_ds_client(lseg, idx, ds->ds_clp,
hdr->inode);
if (IS_ERR(ds_clnt))
- return PNFS_NOT_ATTEMPTED;
+ goto out_failed;
ds_cred = ff_layout_get_ds_cred(lseg, idx, hdr->cred);
if (!ds_cred)
- return PNFS_NOT_ATTEMPTED;
+ goto out_failed;
vers = nfs4_ff_layout_ds_version(lseg, idx);
- dprintk("%s ino %lu sync %d req %Zu@%llu DS: %s cl_count %d vers %d\n",
+ dprintk("%s ino %lu sync %d req %zu@%llu DS: %s cl_count %d vers %d\n",
__func__, hdr->inode->i_ino, sync, (size_t) hdr->args.count,
offset, ds->ds_remotestr, atomic_read(&ds->ds_clp->cl_count),
vers);
@@ -1854,6 +1809,11 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
sync, RPC_TASK_SOFTCONN);
put_rpccred(ds_cred);
return PNFS_ATTEMPTED;
+
+out_failed:
+ if (ff_layout_avoid_mds_available_ds(lseg))
+ return PNFS_TRY_AGAIN;
+ return PNFS_NOT_ATTEMPTED;
}
static u32 calc_ds_index_from_commit(struct pnfs_layout_segment *lseg, u32 i)
@@ -1882,6 +1842,10 @@ static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how)
int vers, ret;
struct nfs_fh *fh;
+ if (!lseg || !(pnfs_is_valid_lseg(lseg) ||
+ test_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags)))
+ goto out_err;
+
idx = calc_ds_index_from_commit(lseg, data->ds_commit_index);
ds = nfs4_ff_layout_prepare_ds(lseg, idx, true);
if (!ds)
@@ -1965,10 +1929,7 @@ static int ff_layout_encode_ioerr(struct xdr_stream *xdr,
static void
encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
{
- __be32 *p;
-
- p = xdr_reserve_space(xdr, len);
- xdr_encode_opaque_fixed(p, buf, len);
+ WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0);
}
static void
@@ -2092,7 +2053,7 @@ ff_layout_free_layoutreturn(struct nfs4_xdr_opaque_data *args)
kfree(ff_args);
}
-const struct nfs4_xdr_opaque_ops layoutreturn_ops = {
+static const struct nfs4_xdr_opaque_ops layoutreturn_ops = {
.encode = ff_layout_encode_layoutreturn,
.free = ff_layout_free_layoutreturn,
};
@@ -2372,10 +2333,21 @@ ff_layout_prepare_layoutstats(struct nfs42_layoutstat_args *args)
return 0;
}
+static int
+ff_layout_set_layoutdriver(struct nfs_server *server,
+ const struct nfs_fh *dummy)
+{
+#if IS_ENABLED(CONFIG_NFS_V4_2)
+ server->caps |= NFS_CAP_LAYOUTSTATS;
+#endif
+ return 0;
+}
+
static struct pnfs_layoutdriver_type flexfilelayout_type = {
.id = LAYOUT_FLEX_FILES,
.name = "LAYOUT_FLEX_FILES",
.owner = THIS_MODULE,
+ .set_layoutdriver = ff_layout_set_layoutdriver,
.alloc_layout_hdr = ff_layout_alloc_layout_hdr,
.free_layout_hdr = ff_layout_free_layout_hdr,
.alloc_lseg = ff_layout_alloc_lseg,
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h
index f4f39b0ab09b..98b34c9b0564 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.h
+++ b/fs/nfs/flexfilelayout/flexfilelayout.h
@@ -175,7 +175,19 @@ ff_layout_no_read_on_rw(struct pnfs_layout_segment *lseg)
static inline bool
ff_layout_test_devid_unavailable(struct nfs4_deviceid_node *node)
{
- return nfs4_test_deviceid_unavailable(node);
+ /*
+ * Flexfiles should never mark a DS unavailable, but if it does
+ * print a (ratelimited) warning as this can affect performance.
+ */
+ if (nfs4_test_deviceid_unavailable(node)) {
+ u32 *p = (u32 *)node->deviceid.data;
+
+ pr_warn_ratelimited("NFS: flexfiles layout referencing an "
+ "unavailable device [%x%x%x%x]\n",
+ p[0], p[1], p[2], p[3]);
+ return true;
+ }
+ return false;
}
static inline int
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index e5a6f248697b..6df7a0cf5660 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -119,7 +119,13 @@ nfs4_ff_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
if (ds_versions[i].wsize > NFS_MAX_FILE_IO_SIZE)
ds_versions[i].wsize = NFS_MAX_FILE_IO_SIZE;
- if (ds_versions[i].version != 3 || ds_versions[i].minor_version != 0) {
+ /*
+ * check for valid major/minor combination.
+ * currently we support dataserver which talk:
+ * v3, v4.0, v4.1, v4.2
+ */
+ if (!((ds_versions[i].version == 3 && ds_versions[i].minor_version == 0) ||
+ (ds_versions[i].version == 4 && ds_versions[i].minor_version < 3))) {
dprintk("%s: [%d] unsupported ds version %d-%d\n", __func__,
i, ds_versions[i].version,
ds_versions[i].minor_version);
@@ -208,6 +214,10 @@ static bool ff_layout_mirror_valid(struct pnfs_layout_segment *lseg,
} else
goto outerr;
}
+
+ if (IS_ERR(mirror->mirror_ds))
+ goto outerr;
+
if (mirror->mirror_ds->ds == NULL) {
struct nfs4_deviceid_node *devid;
devid = &mirror->mirror_ds->id_node;
@@ -384,6 +394,7 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx,
struct inode *ino = lseg->pls_layout->plh_inode;
struct nfs_server *s = NFS_SERVER(ino);
unsigned int max_payload;
+ int status;
if (!ff_layout_mirror_valid(lseg, mirror, true)) {
pr_err_ratelimited("NFS: %s: No data server for offset index %d\n",
@@ -404,13 +415,13 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx,
/* FIXME: For now we assume the server sent only one version of NFS
* to use for the DS.
*/
- nfs4_pnfs_ds_connect(s, ds, devid, dataserver_timeo,
+ status = nfs4_pnfs_ds_connect(s, ds, devid, dataserver_timeo,
dataserver_retrans,
mirror->mirror_ds->ds_versions[0].version,
mirror->mirror_ds->ds_versions[0].minor_version);
/* connect success, check rsize/wsize limit */
- if (ds->ds_clp) {
+ if (!status) {
max_payload =
nfs_block_size(rpc_max_payload(ds->ds_clp->cl_rpcclient),
NULL);
@@ -420,11 +431,11 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx,
mirror->mirror_ds->ds_versions[0].wsize = max_payload;
goto out;
}
+out_fail:
ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout),
mirror, lseg->pls_range.offset,
lseg->pls_range.length, NFS4ERR_NXIO,
OP_ILLEGAL, GFP_NOIO);
-out_fail:
if (fail_return || !ff_layout_has_available_ds(lseg))
pnfs_error_mark_layout_for_return(ino, lseg);
ds = NULL;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 5ca4d96b1942..109279d6d91b 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -15,7 +15,7 @@
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/time.h>
#include <linux/kernel.h>
#include <linux/mm.h>
@@ -386,6 +386,28 @@ void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
#endif
EXPORT_SYMBOL_GPL(nfs_setsecurity);
+/* Search for inode identified by fh, fileid and i_mode in inode cache. */
+struct inode *
+nfs_ilookup(struct super_block *sb, struct nfs_fattr *fattr, struct nfs_fh *fh)
+{
+ struct nfs_find_desc desc = {
+ .fh = fh,
+ .fattr = fattr,
+ };
+ struct inode *inode;
+ unsigned long hash;
+
+ if (!(fattr->valid & NFS_ATTR_FATTR_FILEID) ||
+ !(fattr->valid & NFS_ATTR_FATTR_TYPE))
+ return NULL;
+
+ hash = nfs_fattr_to_ino_t(fattr);
+ inode = ilookup5(sb, hash, nfs_find_actor, &desc);
+
+ dprintk("%s: returning %p\n", __func__, inode);
+ return inode;
+}
+
/*
* This is our front-end to iget that looks up inodes by file handle
* instead of inode number.
@@ -525,8 +547,14 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
nfs_fscache_init_inode(inode);
unlock_new_inode(inode);
- } else
- nfs_refresh_inode(inode, fattr);
+ } else {
+ int err = nfs_refresh_inode(inode, fattr);
+ if (err < 0) {
+ iput(inode);
+ inode = ERR_PTR(err);
+ goto out_no_inode;
+ }
+ }
dprintk("NFS: nfs_fhget(%s/%Lu fh_crc=0x%08x ct=%d)\n",
inode->i_sb->s_id,
(unsigned long long)NFS_FILEID(inode),
@@ -703,9 +731,10 @@ static bool nfs_need_revalidate_inode(struct inode *inode)
return false;
}
-int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+int nfs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
int need_atime = NFS_I(inode)->cache_validity & NFS_INO_INVALID_ATIME;
int err = 0;
@@ -726,17 +755,20 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
* - NFS never sets MS_NOATIME or MS_NODIRATIME so there is
* no point in checking those.
*/
- if ((mnt->mnt_flags & MNT_NOATIME) ||
- ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)))
+ if ((path->mnt->mnt_flags & MNT_NOATIME) ||
+ ((path->mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)))
need_atime = 0;
if (need_atime || nfs_need_revalidate_inode(inode)) {
struct nfs_server *server = NFS_SERVER(inode);
- nfs_readdirplus_parent_cache_miss(dentry);
+ if (!(server->flags & NFS_MOUNT_NOAC))
+ nfs_readdirplus_parent_cache_miss(path->dentry);
+ else
+ nfs_readdirplus_parent_cache_hit(path->dentry);
err = __nfs_revalidate_inode(server, inode);
} else
- nfs_readdirplus_parent_cache_hit(dentry);
+ nfs_readdirplus_parent_cache_hit(path->dentry);
if (!err) {
generic_fillattr(inode, stat);
stat->ino = nfs_compat_user_ino64(NFS_FILEID(inode));
@@ -1311,9 +1343,9 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
return 0;
/* Has the inode gone and changed behind our back? */
if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
- return -EIO;
+ return -ESTALE;
if ((fattr->valid & NFS_ATTR_FATTR_TYPE) && (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT))
- return -EIO;
+ return -ESTALE;
if (!nfs_file_has_buffered_writers(nfsi)) {
/* Verify a few of the more important attributes */
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 09ca5095c04e..dc456416d2be 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -7,9 +7,12 @@
#include <linux/security.h>
#include <linux/crc32.h>
#include <linux/nfs_page.h>
+#include <linux/wait_bit.h>
#define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS)
+extern const struct export_operations nfs_export_ops;
+
struct nfs_string;
/* Maximum number of readahead requests
@@ -186,6 +189,8 @@ extern struct nfs_server *nfs_clone_server(struct nfs_server *,
struct nfs_fh *,
struct nfs_fattr *,
rpc_authflavor_t);
+extern bool nfs_client_init_is_complete(const struct nfs_client *clp);
+extern int nfs_client_init_status(const struct nfs_client *clp);
extern int nfs_wait_client_init_complete(const struct nfs_client *clp);
extern void nfs_mark_client_ready(struct nfs_client *clp, int state);
extern struct nfs_client *nfs4_set_ds_client(struct nfs_server *mds_srv,
@@ -223,8 +228,8 @@ static inline void nfs_fs_proc_exit(void)
#endif
/* callback_xdr.c */
-extern struct svc_version nfs4_callback_version1;
-extern struct svc_version nfs4_callback_version4;
+extern const struct svc_version nfs4_callback_version1;
+extern const struct svc_version nfs4_callback_version4;
struct nfs_pageio_descriptor;
/* pagelist.c */
@@ -268,19 +273,19 @@ static inline bool nfs_match_open_context(const struct nfs_open_context *ctx1,
}
/* nfs2xdr.c */
-extern struct rpc_procinfo nfs_procedures[];
+extern const struct rpc_procinfo nfs_procedures[];
extern int nfs2_decode_dirent(struct xdr_stream *,
- struct nfs_entry *, int);
+ struct nfs_entry *, bool);
/* nfs3xdr.c */
-extern struct rpc_procinfo nfs3_procedures[];
+extern const struct rpc_procinfo nfs3_procedures[];
extern int nfs3_decode_dirent(struct xdr_stream *,
- struct nfs_entry *, int);
+ struct nfs_entry *, bool);
/* nfs4xdr.c */
#if IS_ENABLED(CONFIG_NFS_V4)
extern int nfs4_decode_dirent(struct xdr_stream *,
- struct nfs_entry *, int);
+ struct nfs_entry *, bool);
#endif
#ifdef CONFIG_NFS_V4_1
extern const u32 nfs41_maxread_overhead;
@@ -290,7 +295,7 @@ extern const u32 nfs41_maxgetdevinfo_overhead;
/* nfs4proc.c */
#if IS_ENABLED(CONFIG_NFS_V4)
-extern struct rpc_procinfo nfs4_procedures[];
+extern const struct rpc_procinfo nfs4_procedures[];
#endif
#ifdef CONFIG_NFS_V4_SECURITY_LABEL
@@ -396,7 +401,6 @@ extern struct file_system_type nfs4_referral_fs_type;
bool nfs_auth_info_match(const struct nfs_auth_info *, rpc_authflavor_t);
struct dentry *nfs_try_mount(int, const char *, struct nfs_mount_info *,
struct nfs_subversion *);
-void nfs_initialise_sb(struct super_block *);
int nfs_set_sb_security(struct super_block *, struct dentry *, struct nfs_mount_info *);
int nfs_clone_sb_security(struct super_block *, struct dentry *, struct nfs_mount_info *);
struct dentry *nfs_fs_mount_common(struct nfs_server *, int, const char *,
@@ -456,7 +460,6 @@ extern void nfs_read_prepare(struct rpc_task *task, void *calldata);
extern void nfs_pageio_reset_read_mds(struct nfs_pageio_descriptor *pgio);
/* super.c */
-void nfs_clone_super(struct super_block *, struct nfs_mount_info *);
void nfs_umount_begin(struct super_block *);
int nfs_statfs(struct dentry *, struct kstatfs *);
int nfs_show_options(struct seq_file *, struct dentry *);
@@ -493,7 +496,6 @@ void nfs_mark_request_commit(struct nfs_page *req,
u32 ds_commit_idx);
int nfs_write_need_commit(struct nfs_pgio_header *);
void nfs_writeback_update_inode(struct nfs_pgio_header *hdr);
-int nfs_commit_file(struct file *file, struct nfs_write_verifier *verf);
int nfs_generic_commit_list(struct inode *inode, struct list_head *head,
int how, struct nfs_commit_info *cinfo);
void nfs_retry_commit(struct list_head *page_list,
@@ -754,9 +756,13 @@ static inline bool nfs_error_is_fatal(int err)
{
switch (err) {
case -ERESTARTSYS:
+ case -EACCES:
+ case -EDQUOT:
+ case -EFBIG:
case -EIO:
case -ENOSPC:
case -EROFS:
+ case -ESTALE:
case -E2BIG:
return true;
default:
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 09b190015df4..60bad882c123 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -304,7 +304,7 @@ static void encode_mntdirpath(struct xdr_stream *xdr, const char *pathname)
}
static void mnt_xdr_enc_dirpath(struct rpc_rqst *req, struct xdr_stream *xdr,
- const char *dirpath)
+ const void *dirpath)
{
encode_mntdirpath(xdr, dirpath);
}
@@ -357,8 +357,9 @@ static int decode_fhandle(struct xdr_stream *xdr, struct mountres *res)
static int mnt_xdr_dec_mountres(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct mountres *res)
+ void *data)
{
+ struct mountres *res = data;
int status;
status = decode_status(xdr, res);
@@ -449,8 +450,9 @@ static int decode_auth_flavors(struct xdr_stream *xdr, struct mountres *res)
static int mnt_xdr_dec_mountres3(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct mountres *res)
+ void *data)
{
+ struct mountres *res = data;
int status;
status = decode_fhs_status(xdr, res);
@@ -464,11 +466,11 @@ static int mnt_xdr_dec_mountres3(struct rpc_rqst *req,
return decode_auth_flavors(xdr, res);
}
-static struct rpc_procinfo mnt_procedures[] = {
+static const struct rpc_procinfo mnt_procedures[] = {
[MOUNTPROC_MNT] = {
.p_proc = MOUNTPROC_MNT,
- .p_encode = (kxdreproc_t)mnt_xdr_enc_dirpath,
- .p_decode = (kxdrdproc_t)mnt_xdr_dec_mountres,
+ .p_encode = mnt_xdr_enc_dirpath,
+ .p_decode = mnt_xdr_dec_mountres,
.p_arglen = MNT_enc_dirpath_sz,
.p_replen = MNT_dec_mountres_sz,
.p_statidx = MOUNTPROC_MNT,
@@ -476,18 +478,18 @@ static struct rpc_procinfo mnt_procedures[] = {
},
[MOUNTPROC_UMNT] = {
.p_proc = MOUNTPROC_UMNT,
- .p_encode = (kxdreproc_t)mnt_xdr_enc_dirpath,
+ .p_encode = mnt_xdr_enc_dirpath,
.p_arglen = MNT_enc_dirpath_sz,
.p_statidx = MOUNTPROC_UMNT,
.p_name = "UMOUNT",
},
};
-static struct rpc_procinfo mnt3_procedures[] = {
+static const struct rpc_procinfo mnt3_procedures[] = {
[MOUNTPROC3_MNT] = {
.p_proc = MOUNTPROC3_MNT,
- .p_encode = (kxdreproc_t)mnt_xdr_enc_dirpath,
- .p_decode = (kxdrdproc_t)mnt_xdr_dec_mountres3,
+ .p_encode = mnt_xdr_enc_dirpath,
+ .p_decode = mnt_xdr_dec_mountres3,
.p_arglen = MNT_enc_dirpath_sz,
.p_replen = MNT_dec_mountres3_sz,
.p_statidx = MOUNTPROC3_MNT,
@@ -495,24 +497,27 @@ static struct rpc_procinfo mnt3_procedures[] = {
},
[MOUNTPROC3_UMNT] = {
.p_proc = MOUNTPROC3_UMNT,
- .p_encode = (kxdreproc_t)mnt_xdr_enc_dirpath,
+ .p_encode = mnt_xdr_enc_dirpath,
.p_arglen = MNT_enc_dirpath_sz,
.p_statidx = MOUNTPROC3_UMNT,
.p_name = "UMOUNT",
},
};
-
+static unsigned int mnt_counts[ARRAY_SIZE(mnt_procedures)];
static const struct rpc_version mnt_version1 = {
.number = 1,
.nrprocs = ARRAY_SIZE(mnt_procedures),
.procs = mnt_procedures,
+ .counts = mnt_counts,
};
+static unsigned int mnt3_counts[ARRAY_SIZE(mnt3_procedures)];
static const struct rpc_version mnt_version3 = {
.number = 3,
.nrprocs = ARRAY_SIZE(mnt3_procedures),
.procs = mnt3_procedures,
+ .counts = mnt3_counts,
};
static const struct rpc_version *mnt_version[] = {
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 5551e8ef67fd..e5686be67be8 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -143,11 +143,8 @@ struct vfsmount *nfs_d_automount(struct path *path)
struct nfs_fh *fh = NULL;
struct nfs_fattr *fattr = NULL;
- dprintk("--> nfs_d_automount()\n");
-
- mnt = ERR_PTR(-ESTALE);
if (IS_ROOT(path->dentry))
- goto out_nofree;
+ return ERR_PTR(-ESTALE);
mnt = ERR_PTR(-ENOMEM);
fh = nfs_alloc_fhandle();
@@ -155,13 +152,10 @@ struct vfsmount *nfs_d_automount(struct path *path)
if (fh == NULL || fattr == NULL)
goto out;
- dprintk("%s: enter\n", __func__);
-
mnt = server->nfs_client->rpc_ops->submount(server, path->dentry, fh, fattr);
if (IS_ERR(mnt))
goto out;
- dprintk("%s: done, success\n", __func__);
mntget(mnt); /* prevent immediate expiration */
mnt_set_expiry(mnt, &nfs_automount_list);
schedule_delayed_work(&nfs_automount_task, nfs_mountpoint_expiry_timeout);
@@ -169,20 +163,16 @@ struct vfsmount *nfs_d_automount(struct path *path)
out:
nfs_free_fattr(fattr);
nfs_free_fhandle(fh);
-out_nofree:
- if (IS_ERR(mnt))
- dprintk("<-- %s(): error %ld\n", __func__, PTR_ERR(mnt));
- else
- dprintk("<-- %s() = %p\n", __func__, mnt);
return mnt;
}
static int
-nfs_namespace_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+nfs_namespace_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- if (NFS_FH(d_inode(dentry))->size != 0)
- return nfs_getattr(mnt, dentry, stat);
- generic_fillattr(d_inode(dentry), stat);
+ if (NFS_FH(d_inode(path->dentry))->size != 0)
+ return nfs_getattr(path, stat, request_mask, query_flags);
+ generic_fillattr(d_inode(path->dentry), stat);
return 0;
}
@@ -226,7 +216,7 @@ static struct vfsmount *nfs_do_clone_mount(struct nfs_server *server,
const char *devname,
struct nfs_clone_mount *mountdata)
{
- return vfs_kern_mount(&nfs_xdev_fs_type, 0, devname, mountdata);
+ return vfs_submount(mountdata->dentry, &nfs_xdev_fs_type, devname, mountdata);
}
/**
@@ -247,27 +237,20 @@ struct vfsmount *nfs_do_submount(struct dentry *dentry, struct nfs_fh *fh,
.fattr = fattr,
.authflavor = authflavor,
};
- struct vfsmount *mnt = ERR_PTR(-ENOMEM);
+ struct vfsmount *mnt;
char *page = (char *) __get_free_page(GFP_USER);
char *devname;
- dprintk("--> nfs_do_submount()\n");
-
- dprintk("%s: submounting on %pd2\n", __func__,
- dentry);
if (page == NULL)
- goto out;
+ return ERR_PTR(-ENOMEM);
+
devname = nfs_devname(dentry, page, PAGE_SIZE);
- mnt = (struct vfsmount *)devname;
if (IS_ERR(devname))
- goto free_page;
- mnt = nfs_do_clone_mount(NFS_SB(dentry->d_sb), devname, &mountdata);
-free_page:
- free_page((unsigned long)page);
-out:
- dprintk("%s: done\n", __func__);
+ mnt = ERR_CAST(devname);
+ else
+ mnt = nfs_do_clone_mount(NFS_SB(dentry->d_sb), devname, &mountdata);
- dprintk("<-- nfs_do_submount() = %p\n", mnt);
+ free_page((unsigned long)page);
return mnt;
}
EXPORT_SYMBOL_GPL(nfs_do_submount);
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index b4e03ed8599d..fe68dabfbde6 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -568,8 +568,10 @@ out_default:
static void nfs2_xdr_enc_fhandle(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_fh *fh)
+ const void *data)
{
+ const struct nfs_fh *fh = data;
+
encode_fhandle(xdr, fh);
}
@@ -583,23 +585,29 @@ static void nfs2_xdr_enc_fhandle(struct rpc_rqst *req,
*/
static void nfs2_xdr_enc_sattrargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_sattrargs *args)
+ const void *data)
{
+ const struct nfs_sattrargs *args = data;
+
encode_fhandle(xdr, args->fh);
encode_sattr(xdr, args->sattr);
}
static void nfs2_xdr_enc_diropargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_diropargs *args)
+ const void *data)
{
+ const struct nfs_diropargs *args = data;
+
encode_diropargs(xdr, args->fh, args->name, args->len);
}
static void nfs2_xdr_enc_readlinkargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_readlinkargs *args)
+ const void *data)
{
+ const struct nfs_readlinkargs *args = data;
+
encode_fhandle(xdr, args->fh);
prepare_reply_buffer(req, args->pages, args->pgbase,
args->pglen, NFS_readlinkres_sz);
@@ -632,8 +640,10 @@ static void encode_readargs(struct xdr_stream *xdr,
static void nfs2_xdr_enc_readargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_pgio_args *args)
+ const void *data)
{
+ const struct nfs_pgio_args *args = data;
+
encode_readargs(xdr, args);
prepare_reply_buffer(req, args->pages, args->pgbase,
args->count, NFS_readres_sz);
@@ -672,8 +682,10 @@ static void encode_writeargs(struct xdr_stream *xdr,
static void nfs2_xdr_enc_writeargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_pgio_args *args)
+ const void *data)
{
+ const struct nfs_pgio_args *args = data;
+
encode_writeargs(xdr, args);
xdr->buf->flags |= XDRBUF_WRITE;
}
@@ -688,16 +700,20 @@ static void nfs2_xdr_enc_writeargs(struct rpc_rqst *req,
*/
static void nfs2_xdr_enc_createargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_createargs *args)
+ const void *data)
{
+ const struct nfs_createargs *args = data;
+
encode_diropargs(xdr, args->fh, args->name, args->len);
encode_sattr(xdr, args->sattr);
}
static void nfs2_xdr_enc_removeargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_removeargs *args)
+ const void *data)
{
+ const struct nfs_removeargs *args = data;
+
encode_diropargs(xdr, args->fh, args->name.name, args->name.len);
}
@@ -711,8 +727,9 @@ static void nfs2_xdr_enc_removeargs(struct rpc_rqst *req,
*/
static void nfs2_xdr_enc_renameargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_renameargs *args)
+ const void *data)
{
+ const struct nfs_renameargs *args = data;
const struct qstr *old = args->old_name;
const struct qstr *new = args->new_name;
@@ -730,8 +747,10 @@ static void nfs2_xdr_enc_renameargs(struct rpc_rqst *req,
*/
static void nfs2_xdr_enc_linkargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_linkargs *args)
+ const void *data)
{
+ const struct nfs_linkargs *args = data;
+
encode_fhandle(xdr, args->fromfh);
encode_diropargs(xdr, args->tofh, args->toname, args->tolen);
}
@@ -747,8 +766,10 @@ static void nfs2_xdr_enc_linkargs(struct rpc_rqst *req,
*/
static void nfs2_xdr_enc_symlinkargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_symlinkargs *args)
+ const void *data)
{
+ const struct nfs_symlinkargs *args = data;
+
encode_diropargs(xdr, args->fromfh, args->fromname, args->fromlen);
encode_path(xdr, args->pages, args->pathlen);
encode_sattr(xdr, args->sattr);
@@ -777,8 +798,10 @@ static void encode_readdirargs(struct xdr_stream *xdr,
static void nfs2_xdr_enc_readdirargs(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_readdirargs *args)
+ const void *data)
{
+ const struct nfs_readdirargs *args = data;
+
encode_readdirargs(xdr, args);
prepare_reply_buffer(req, args->pages, 0,
args->count, NFS_readdirres_sz);
@@ -809,13 +832,13 @@ out_default:
}
static int nfs2_xdr_dec_attrstat(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_fattr *result)
+ void *result)
{
return decode_attrstat(xdr, result, NULL);
}
static int nfs2_xdr_dec_diropres(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_diropok *result)
+ void *result)
{
return decode_diropres(xdr, result);
}
@@ -860,8 +883,9 @@ out_default:
* };
*/
static int nfs2_xdr_dec_readres(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_pgio_res *result)
+ void *data)
{
+ struct nfs_pgio_res *result = data;
enum nfs_stat status;
int error;
@@ -882,8 +906,10 @@ out_default:
}
static int nfs2_xdr_dec_writeres(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_pgio_res *result)
+ void *data)
{
+ struct nfs_pgio_res *result = data;
+
/* All NFSv2 writes are "file sync" writes */
result->verf->committed = NFS_FILE_SYNC;
return decode_attrstat(xdr, result->fattr, &result->op_status);
@@ -913,7 +939,7 @@ static int nfs2_xdr_dec_writeres(struct rpc_rqst *req, struct xdr_stream *xdr,
* };
*/
int nfs2_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
- int plus)
+ bool plus)
{
__be32 *p;
int error;
@@ -1034,7 +1060,7 @@ out_overflow:
}
static int nfs2_xdr_dec_statfsres(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs2_fsstat *result)
+ void *result)
{
enum nfs_stat status;
int error;
@@ -1118,15 +1144,15 @@ static int nfs_stat_to_errno(enum nfs_stat status)
#define PROC(proc, argtype, restype, timer) \
[NFSPROC_##proc] = { \
.p_proc = NFSPROC_##proc, \
- .p_encode = (kxdreproc_t)nfs2_xdr_enc_##argtype, \
- .p_decode = (kxdrdproc_t)nfs2_xdr_dec_##restype, \
+ .p_encode = nfs2_xdr_enc_##argtype, \
+ .p_decode = nfs2_xdr_dec_##restype, \
.p_arglen = NFS_##argtype##_sz, \
.p_replen = NFS_##restype##_sz, \
.p_timer = timer, \
.p_statidx = NFSPROC_##proc, \
.p_name = #proc, \
}
-struct rpc_procinfo nfs_procedures[] = {
+const struct rpc_procinfo nfs_procedures[] = {
PROC(GETATTR, fhandle, attrstat, 1),
PROC(SETATTR, sattrargs, attrstat, 0),
PROC(LOOKUP, diropargs, diropres, 2),
@@ -1144,8 +1170,10 @@ struct rpc_procinfo nfs_procedures[] = {
PROC(STATFS, fhandle, statfsres, 0),
};
+static unsigned int nfs_version2_counts[ARRAY_SIZE(nfs_procedures)];
const struct rpc_version nfs_version2 = {
.number = 2,
.nrprocs = ARRAY_SIZE(nfs_procedures),
- .procs = nfs_procedures
+ .procs = nfs_procedures,
+ .counts = nfs_version2_counts,
};
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index dc925b531f32..d1e87ec0df84 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -220,15 +220,8 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
nfs_refresh_inode(inode, res.fattr);
- if (status == 0) {
- entry->mask = 0;
- if (res.access & NFS3_ACCESS_READ)
- entry->mask |= MAY_READ;
- if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE))
- entry->mask |= MAY_WRITE;
- if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE))
- entry->mask |= MAY_EXEC;
- }
+ if (status == 0)
+ nfs_access_set_mask(entry, res.access);
nfs_free_fattr(res.fattr);
out:
dprintk("NFS reply access: %d\n", status);
@@ -621,7 +614,7 @@ out:
*/
static int
nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
- u64 cookie, struct page **pages, unsigned int count, int plus)
+ u64 cookie, struct page **pages, unsigned int count, bool plus)
{
struct inode *dir = d_inode(dentry);
__be32 *verf = NFS_I(dir)->cookieverf;
@@ -865,12 +858,63 @@ static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_mess
msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
}
+static void nfs3_nlm_alloc_call(void *data)
+{
+ struct nfs_lock_context *l_ctx = data;
+ if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
+ get_nfs_open_context(l_ctx->open_context);
+ nfs_get_lock_context(l_ctx->open_context);
+ }
+}
+
+static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data)
+{
+ struct nfs_lock_context *l_ctx = data;
+ if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags))
+ return nfs_async_iocounter_wait(task, l_ctx);
+ return false;
+
+}
+
+static void nfs3_nlm_release_call(void *data)
+{
+ struct nfs_lock_context *l_ctx = data;
+ struct nfs_open_context *ctx;
+ if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
+ ctx = l_ctx->open_context;
+ nfs_put_lock_context(l_ctx);
+ put_nfs_open_context(ctx);
+ }
+}
+
+const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = {
+ .nlmclnt_alloc_call = nfs3_nlm_alloc_call,
+ .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare,
+ .nlmclnt_release_call = nfs3_nlm_release_call,
+};
+
static int
nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
{
struct inode *inode = file_inode(filp);
+ struct nfs_lock_context *l_ctx = NULL;
+ struct nfs_open_context *ctx = nfs_file_open_context(filp);
+ int status;
- return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
+ if (fl->fl_flags & FL_CLOSE) {
+ l_ctx = nfs_get_lock_context(ctx);
+ if (IS_ERR(l_ctx))
+ l_ctx = NULL;
+ else
+ set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags);
+ }
+
+ status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx);
+
+ if (l_ctx)
+ nfs_put_lock_context(l_ctx);
+
+ return status;
}
static int nfs3_have_delegation(struct inode *inode, fmode_t flags)
@@ -921,6 +965,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
.dir_inode_ops = &nfs3_dir_inode_operations,
.file_inode_ops = &nfs3_file_inode_operations,
.file_ops = &nfs_file_operations,
+ .nlmclnt_ops = &nlmclnt_fl_close_lock_ops,
.getroot = nfs3_proc_get_root,
.submount = nfs_submount,
.try_mount = nfs_try_mount,
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 267126d32ec0..e82c9e553224 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -846,8 +846,10 @@ static void encode_diropargs3(struct xdr_stream *xdr, const struct nfs_fh *fh,
*/
static void nfs3_xdr_enc_getattr3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_fh *fh)
+ const void *data)
{
+ const struct nfs_fh *fh = data;
+
encode_nfs_fh3(xdr, fh);
}
@@ -884,8 +886,9 @@ static void encode_sattrguard3(struct xdr_stream *xdr,
static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_sattrargs *args)
+ const void *data)
{
+ const struct nfs3_sattrargs *args = data;
encode_nfs_fh3(xdr, args->fh);
encode_sattr3(xdr, args->sattr);
encode_sattrguard3(xdr, args);
@@ -900,8 +903,10 @@ static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
*/
static void nfs3_xdr_enc_lookup3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_diropargs *args)
+ const void *data)
{
+ const struct nfs3_diropargs *args = data;
+
encode_diropargs3(xdr, args->fh, args->name, args->len);
}
@@ -922,8 +927,10 @@ static void encode_access3args(struct xdr_stream *xdr,
static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_accessargs *args)
+ const void *data)
{
+ const struct nfs3_accessargs *args = data;
+
encode_access3args(xdr, args);
}
@@ -936,8 +943,10 @@ static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
*/
static void nfs3_xdr_enc_readlink3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_readlinkargs *args)
+ const void *data)
{
+ const struct nfs3_readlinkargs *args = data;
+
encode_nfs_fh3(xdr, args->fh);
prepare_reply_buffer(req, args->pages, args->pgbase,
args->pglen, NFS3_readlinkres_sz);
@@ -966,8 +975,10 @@ static void encode_read3args(struct xdr_stream *xdr,
static void nfs3_xdr_enc_read3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_pgio_args *args)
+ const void *data)
{
+ const struct nfs_pgio_args *args = data;
+
encode_read3args(xdr, args);
prepare_reply_buffer(req, args->pages, args->pgbase,
args->count, NFS3_readres_sz);
@@ -1008,8 +1019,10 @@ static void encode_write3args(struct xdr_stream *xdr,
static void nfs3_xdr_enc_write3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_pgio_args *args)
+ const void *data)
{
+ const struct nfs_pgio_args *args = data;
+
encode_write3args(xdr, args);
xdr->buf->flags |= XDRBUF_WRITE;
}
@@ -1055,8 +1068,10 @@ static void encode_createhow3(struct xdr_stream *xdr,
static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_createargs *args)
+ const void *data)
{
+ const struct nfs3_createargs *args = data;
+
encode_diropargs3(xdr, args->fh, args->name, args->len);
encode_createhow3(xdr, args);
}
@@ -1071,8 +1086,10 @@ static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
*/
static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_mkdirargs *args)
+ const void *data)
{
+ const struct nfs3_mkdirargs *args = data;
+
encode_diropargs3(xdr, args->fh, args->name, args->len);
encode_sattr3(xdr, args->sattr);
}
@@ -1091,16 +1108,20 @@ static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
* };
*/
static void encode_symlinkdata3(struct xdr_stream *xdr,
- const struct nfs3_symlinkargs *args)
+ const void *data)
{
+ const struct nfs3_symlinkargs *args = data;
+
encode_sattr3(xdr, args->sattr);
encode_nfspath3(xdr, args->pages, args->pathlen);
}
static void nfs3_xdr_enc_symlink3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_symlinkargs *args)
+ const void *data)
{
+ const struct nfs3_symlinkargs *args = data;
+
encode_diropargs3(xdr, args->fromfh, args->fromname, args->fromlen);
encode_symlinkdata3(xdr, args);
xdr->buf->flags |= XDRBUF_WRITE;
@@ -1160,8 +1181,10 @@ static void encode_mknoddata3(struct xdr_stream *xdr,
static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_mknodargs *args)
+ const void *data)
{
+ const struct nfs3_mknodargs *args = data;
+
encode_diropargs3(xdr, args->fh, args->name, args->len);
encode_mknoddata3(xdr, args);
}
@@ -1175,8 +1198,10 @@ static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
*/
static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_removeargs *args)
+ const void *data)
{
+ const struct nfs_removeargs *args = data;
+
encode_diropargs3(xdr, args->fh, args->name.name, args->name.len);
}
@@ -1190,8 +1215,9 @@ static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
*/
static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_renameargs *args)
+ const void *data)
{
+ const struct nfs_renameargs *args = data;
const struct qstr *old = args->old_name;
const struct qstr *new = args->new_name;
@@ -1209,8 +1235,10 @@ static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
*/
static void nfs3_xdr_enc_link3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_linkargs *args)
+ const void *data)
{
+ const struct nfs3_linkargs *args = data;
+
encode_nfs_fh3(xdr, args->fromfh);
encode_diropargs3(xdr, args->tofh, args->toname, args->tolen);
}
@@ -1240,8 +1268,10 @@ static void encode_readdir3args(struct xdr_stream *xdr,
static void nfs3_xdr_enc_readdir3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_readdirargs *args)
+ const void *data)
{
+ const struct nfs3_readdirargs *args = data;
+
encode_readdir3args(xdr, args);
prepare_reply_buffer(req, args->pages, 0,
args->count, NFS3_readdirres_sz);
@@ -1280,8 +1310,10 @@ static void encode_readdirplus3args(struct xdr_stream *xdr,
static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_readdirargs *args)
+ const void *data)
{
+ const struct nfs3_readdirargs *args = data;
+
encode_readdirplus3args(xdr, args);
prepare_reply_buffer(req, args->pages, 0,
args->count, NFS3_readdirres_sz);
@@ -1310,8 +1342,10 @@ static void encode_commit3args(struct xdr_stream *xdr,
static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs_commitargs *args)
+ const void *data)
{
+ const struct nfs_commitargs *args = data;
+
encode_commit3args(xdr, args);
}
@@ -1319,8 +1353,10 @@ static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_getaclargs *args)
+ const void *data)
{
+ const struct nfs3_getaclargs *args = data;
+
encode_nfs_fh3(xdr, args->fh);
encode_uint32(xdr, args->mask);
if (args->mask & (NFS_ACL | NFS_DFACL))
@@ -1331,8 +1367,9 @@ static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs3_setaclargs *args)
+ const void *data)
{
+ const struct nfs3_setaclargs *args = data;
unsigned int base;
int error;
@@ -1382,7 +1419,7 @@ static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
*/
static int nfs3_xdr_dec_getattr3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_fattr *result)
+ void *result)
{
enum nfs_stat status;
int error;
@@ -1419,7 +1456,7 @@ out_default:
*/
static int nfs3_xdr_dec_setattr3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_fattr *result)
+ void *result)
{
enum nfs_stat status;
int error;
@@ -1460,8 +1497,9 @@ out_status:
*/
static int nfs3_xdr_dec_lookup3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs3_diropres *result)
+ void *data)
{
+ struct nfs3_diropres *result = data;
enum nfs_stat status;
int error;
@@ -1507,8 +1545,9 @@ out_default:
*/
static int nfs3_xdr_dec_access3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs3_accessres *result)
+ void *data)
{
+ struct nfs3_accessres *result = data;
enum nfs_stat status;
int error;
@@ -1548,7 +1587,7 @@ out_default:
*/
static int nfs3_xdr_dec_readlink3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_fattr *result)
+ void *result)
{
enum nfs_stat status;
int error;
@@ -1626,8 +1665,9 @@ out_overflow:
}
static int nfs3_xdr_dec_read3res(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_pgio_res *result)
+ void *data)
{
+ struct nfs_pgio_res *result = data;
enum nfs_stat status;
int error;
@@ -1699,8 +1739,9 @@ out_eio:
}
static int nfs3_xdr_dec_write3res(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_pgio_res *result)
+ void *data)
{
+ struct nfs_pgio_res *result = data;
enum nfs_stat status;
int error;
@@ -1764,8 +1805,9 @@ out:
static int nfs3_xdr_dec_create3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs3_diropres *result)
+ void *data)
{
+ struct nfs3_diropres *result = data;
enum nfs_stat status;
int error;
@@ -1804,8 +1846,9 @@ out_default:
*/
static int nfs3_xdr_dec_remove3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_removeres *result)
+ void *data)
{
+ struct nfs_removeres *result = data;
enum nfs_stat status;
int error;
@@ -1845,8 +1888,9 @@ out_status:
*/
static int nfs3_xdr_dec_rename3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_renameres *result)
+ void *data)
{
+ struct nfs_renameres *result = data;
enum nfs_stat status;
int error;
@@ -1888,8 +1932,9 @@ out_status:
* };
*/
static int nfs3_xdr_dec_link3res(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs3_linkres *result)
+ void *data)
{
+ struct nfs3_linkres *result = data;
enum nfs_stat status;
int error;
@@ -1946,7 +1991,7 @@ out_status:
* };
*/
int nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
- int plus)
+ bool plus)
{
struct nfs_entry old = *entry;
__be32 *p;
@@ -2072,8 +2117,9 @@ out:
static int nfs3_xdr_dec_readdir3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs3_readdirres *result)
+ void *data)
{
+ struct nfs3_readdirres *result = data;
enum nfs_stat status;
int error;
@@ -2140,8 +2186,9 @@ out_overflow:
static int nfs3_xdr_dec_fsstat3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_fsstat *result)
+ void *data)
{
+ struct nfs_fsstat *result = data;
enum nfs_stat status;
int error;
@@ -2216,8 +2263,9 @@ out_overflow:
static int nfs3_xdr_dec_fsinfo3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_fsinfo *result)
+ void *data)
{
+ struct nfs_fsinfo *result = data;
enum nfs_stat status;
int error;
@@ -2279,8 +2327,9 @@ out_overflow:
static int nfs3_xdr_dec_pathconf3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_pathconf *result)
+ void *data)
{
+ struct nfs_pathconf *result = data;
enum nfs_stat status;
int error;
@@ -2320,8 +2369,9 @@ out_status:
*/
static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_commitres *result)
+ void *data)
{
+ struct nfs_commitres *result = data;
enum nfs_stat status;
int error;
@@ -2389,7 +2439,7 @@ out:
static int nfs3_xdr_dec_getacl3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs3_getaclres *result)
+ void *result)
{
enum nfs_stat status;
int error;
@@ -2408,7 +2458,7 @@ out_default:
static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_fattr *result)
+ void *result)
{
enum nfs_stat status;
int error;
@@ -2495,8 +2545,8 @@ static int nfs3_stat_to_errno(enum nfs_stat status)
#define PROC(proc, argtype, restype, timer) \
[NFS3PROC_##proc] = { \
.p_proc = NFS3PROC_##proc, \
- .p_encode = (kxdreproc_t)nfs3_xdr_enc_##argtype##3args, \
- .p_decode = (kxdrdproc_t)nfs3_xdr_dec_##restype##3res, \
+ .p_encode = nfs3_xdr_enc_##argtype##3args, \
+ .p_decode = nfs3_xdr_dec_##restype##3res, \
.p_arglen = NFS3_##argtype##args_sz, \
.p_replen = NFS3_##restype##res_sz, \
.p_timer = timer, \
@@ -2504,7 +2554,7 @@ static int nfs3_stat_to_errno(enum nfs_stat status)
.p_name = #proc, \
}
-struct rpc_procinfo nfs3_procedures[] = {
+const struct rpc_procinfo nfs3_procedures[] = {
PROC(GETATTR, getattr, getattr, 1),
PROC(SETATTR, setattr, setattr, 0),
PROC(LOOKUP, lookup, lookup, 2),
@@ -2528,18 +2578,20 @@ struct rpc_procinfo nfs3_procedures[] = {
PROC(COMMIT, commit, commit, 5),
};
+static unsigned int nfs_version3_counts[ARRAY_SIZE(nfs3_procedures)];
const struct rpc_version nfs_version3 = {
.number = 3,
.nrprocs = ARRAY_SIZE(nfs3_procedures),
- .procs = nfs3_procedures
+ .procs = nfs3_procedures,
+ .counts = nfs_version3_counts,
};
#ifdef CONFIG_NFS_V3_ACL
-static struct rpc_procinfo nfs3_acl_procedures[] = {
+static const struct rpc_procinfo nfs3_acl_procedures[] = {
[ACLPROC3_GETACL] = {
.p_proc = ACLPROC3_GETACL,
- .p_encode = (kxdreproc_t)nfs3_xdr_enc_getacl3args,
- .p_decode = (kxdrdproc_t)nfs3_xdr_dec_getacl3res,
+ .p_encode = nfs3_xdr_enc_getacl3args,
+ .p_decode = nfs3_xdr_dec_getacl3res,
.p_arglen = ACL3_getaclargs_sz,
.p_replen = ACL3_getaclres_sz,
.p_timer = 1,
@@ -2547,8 +2599,8 @@ static struct rpc_procinfo nfs3_acl_procedures[] = {
},
[ACLPROC3_SETACL] = {
.p_proc = ACLPROC3_SETACL,
- .p_encode = (kxdreproc_t)nfs3_xdr_enc_setacl3args,
- .p_decode = (kxdrdproc_t)nfs3_xdr_dec_setacl3res,
+ .p_encode = nfs3_xdr_enc_setacl3args,
+ .p_decode = nfs3_xdr_dec_setacl3res,
.p_arglen = ACL3_setaclargs_sz,
.p_replen = ACL3_setaclres_sz,
.p_timer = 0,
@@ -2556,10 +2608,11 @@ static struct rpc_procinfo nfs3_acl_procedures[] = {
},
};
+static unsigned int nfs3_acl_counts[ARRAY_SIZE(nfs3_acl_procedures)];
const struct rpc_version nfsacl_version3 = {
.number = 3,
- .nrprocs = sizeof(nfs3_acl_procedures)/
- sizeof(nfs3_acl_procedures[0]),
+ .nrprocs = ARRAY_SIZE(nfs3_acl_procedures),
.procs = nfs3_acl_procedures,
+ .counts = nfs3_acl_counts,
};
#endif /* CONFIG_NFS_V3_ACL */
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index d12ff9385f49..6c2db51e67a7 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -12,6 +12,7 @@
#include "nfs42.h"
#include "iostat.h"
#include "pnfs.h"
+#include "nfs4session.h"
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_PROC
@@ -128,30 +129,26 @@ out_unlock:
return err;
}
-static ssize_t _nfs42_proc_copy(struct file *src, loff_t pos_src,
+static ssize_t _nfs42_proc_copy(struct file *src,
struct nfs_lock_context *src_lock,
- struct file *dst, loff_t pos_dst,
+ struct file *dst,
struct nfs_lock_context *dst_lock,
- size_t count)
+ struct nfs42_copy_args *args,
+ struct nfs42_copy_res *res)
{
- struct nfs42_copy_args args = {
- .src_fh = NFS_FH(file_inode(src)),
- .src_pos = pos_src,
- .dst_fh = NFS_FH(file_inode(dst)),
- .dst_pos = pos_dst,
- .count = count,
- };
- struct nfs42_copy_res res;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COPY],
- .rpc_argp = &args,
- .rpc_resp = &res,
+ .rpc_argp = args,
+ .rpc_resp = res,
};
struct inode *dst_inode = file_inode(dst);
struct nfs_server *server = NFS_SERVER(dst_inode);
- int status;
+ loff_t pos_src = args->src_pos;
+ loff_t pos_dst = args->dst_pos;
+ size_t count = args->count;
+ ssize_t status;
- status = nfs4_set_rw_stateid(&args.src_stateid, src_lock->open_context,
+ status = nfs4_set_rw_stateid(&args->src_stateid, src_lock->open_context,
src_lock, FMODE_READ);
if (status)
return status;
@@ -161,7 +158,7 @@ static ssize_t _nfs42_proc_copy(struct file *src, loff_t pos_src,
if (status)
return status;
- status = nfs4_set_rw_stateid(&args.dst_stateid, dst_lock->open_context,
+ status = nfs4_set_rw_stateid(&args->dst_stateid, dst_lock->open_context,
dst_lock, FMODE_WRITE);
if (status)
return status;
@@ -170,23 +167,29 @@ static ssize_t _nfs42_proc_copy(struct file *src, loff_t pos_src,
if (status)
return status;
+ res->commit_res.verf = kzalloc(sizeof(struct nfs_writeverf), GFP_NOFS);
+ if (!res->commit_res.verf)
+ return -ENOMEM;
status = nfs4_call_sync(server->client, server, &msg,
- &args.seq_args, &res.seq_res, 0);
+ &args->seq_args, &res->seq_res, 0);
if (status == -ENOTSUPP)
server->caps &= ~NFS_CAP_COPY;
if (status)
- return status;
+ goto out;
- if (res.write_res.verifier.committed != NFS_FILE_SYNC) {
- status = nfs_commit_file(dst, &res.write_res.verifier.verifier);
- if (status)
- return status;
+ if (nfs_write_verifier_cmp(&res->write_res.verifier.verifier,
+ &res->commit_res.verf->verifier)) {
+ status = -EAGAIN;
+ goto out;
}
truncate_pagecache_range(dst_inode, pos_dst,
- pos_dst + res.write_res.count);
+ pos_dst + res->write_res.count);
- return res.write_res.count;
+ status = res->write_res.count;
+out:
+ kfree(res->commit_res.verf);
+ return status;
}
ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
@@ -196,8 +199,22 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
struct nfs_server *server = NFS_SERVER(file_inode(dst));
struct nfs_lock_context *src_lock;
struct nfs_lock_context *dst_lock;
- struct nfs4_exception src_exception = { };
- struct nfs4_exception dst_exception = { };
+ struct nfs42_copy_args args = {
+ .src_fh = NFS_FH(file_inode(src)),
+ .src_pos = pos_src,
+ .dst_fh = NFS_FH(file_inode(dst)),
+ .dst_pos = pos_dst,
+ .count = count,
+ };
+ struct nfs42_copy_res res;
+ struct nfs4_exception src_exception = {
+ .inode = file_inode(src),
+ .stateid = &args.src_stateid,
+ };
+ struct nfs4_exception dst_exception = {
+ .inode = file_inode(dst),
+ .stateid = &args.dst_stateid,
+ };
ssize_t err, err2;
if (!nfs_server_capable(file_inode(dst), NFS_CAP_COPY))
@@ -207,7 +224,6 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
if (IS_ERR(src_lock))
return PTR_ERR(src_lock);
- src_exception.inode = file_inode(src);
src_exception.state = src_lock->open_context->state;
dst_lock = nfs_get_lock_context(nfs_file_open_context(dst));
@@ -216,18 +232,23 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
goto out_put_src_lock;
}
- dst_exception.inode = file_inode(dst);
dst_exception.state = dst_lock->open_context->state;
do {
inode_lock(file_inode(dst));
- err = _nfs42_proc_copy(src, pos_src, src_lock,
- dst, pos_dst, dst_lock, count);
+ err = _nfs42_proc_copy(src, src_lock,
+ dst, dst_lock,
+ &args, &res);
inode_unlock(file_inode(dst));
+ if (err >= 0)
+ break;
if (err == -ENOTSUPP) {
err = -EOPNOTSUPP;
break;
+ } if (err == -EAGAIN) {
+ dst_exception.retry = 1;
+ continue;
}
err2 = nfs4_handle_exception(server, err, &src_exception);
@@ -331,9 +352,8 @@ nfs42_layoutstat_prepare(struct rpc_task *task, void *calldata)
}
nfs4_stateid_copy(&data->args.stateid, &lo->plh_stateid);
spin_unlock(&inode->i_lock);
- nfs41_setup_sequence(nfs4_get_session(server), &data->args.seq_args,
- &data->res.seq_res, task);
-
+ nfs4_setup_sequence(server->nfs_client, &data->args.seq_args,
+ &data->res.seq_res, task);
}
static void
@@ -368,6 +388,7 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
pnfs_mark_layout_stateid_invalid(lo, &head);
spin_unlock(&inode->i_lock);
pnfs_free_lseg_list(&head);
+ nfs_commit_inode(inode, 0);
} else
spin_unlock(&inode->i_lock);
break;
@@ -389,8 +410,6 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
case -EOPNOTSUPP:
NFS_SERVER(inode)->caps &= ~NFS_CAP_LAYOUTSTATS;
}
-
- dprintk("%s server returns %d\n", __func__, task->tk_status);
}
static void
diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index 6c7296454bbc..5ee1b0f0d904 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -66,12 +66,14 @@
encode_putfh_maxsz + \
encode_savefh_maxsz + \
encode_putfh_maxsz + \
- encode_copy_maxsz)
+ encode_copy_maxsz + \
+ encode_commit_maxsz)
#define NFS4_dec_copy_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_putfh_maxsz + \
- decode_copy_maxsz)
+ decode_copy_maxsz + \
+ decode_commit_maxsz)
#define NFS4_enc_deallocate_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_deallocate_maxsz + \
@@ -110,7 +112,7 @@
decode_getattr_maxsz)
static void encode_fallocate(struct xdr_stream *xdr,
- struct nfs42_falloc_args *args)
+ const struct nfs42_falloc_args *args)
{
encode_nfs4_stateid(xdr, &args->falloc_stateid);
encode_uint64(xdr, args->falloc_offset);
@@ -118,7 +120,7 @@ static void encode_fallocate(struct xdr_stream *xdr,
}
static void encode_allocate(struct xdr_stream *xdr,
- struct nfs42_falloc_args *args,
+ const struct nfs42_falloc_args *args,
struct compound_hdr *hdr)
{
encode_op_hdr(xdr, OP_ALLOCATE, decode_allocate_maxsz, hdr);
@@ -126,7 +128,7 @@ static void encode_allocate(struct xdr_stream *xdr,
}
static void encode_copy(struct xdr_stream *xdr,
- struct nfs42_copy_args *args,
+ const struct nfs42_copy_args *args,
struct compound_hdr *hdr)
{
encode_op_hdr(xdr, OP_COPY, decode_copy_maxsz, hdr);
@@ -143,7 +145,7 @@ static void encode_copy(struct xdr_stream *xdr,
}
static void encode_deallocate(struct xdr_stream *xdr,
- struct nfs42_falloc_args *args,
+ const struct nfs42_falloc_args *args,
struct compound_hdr *hdr)
{
encode_op_hdr(xdr, OP_DEALLOCATE, decode_deallocate_maxsz, hdr);
@@ -151,7 +153,7 @@ static void encode_deallocate(struct xdr_stream *xdr,
}
static void encode_seek(struct xdr_stream *xdr,
- struct nfs42_seek_args *args,
+ const struct nfs42_seek_args *args,
struct compound_hdr *hdr)
{
encode_op_hdr(xdr, OP_SEEK, decode_seek_maxsz, hdr);
@@ -161,7 +163,7 @@ static void encode_seek(struct xdr_stream *xdr,
}
static void encode_layoutstats(struct xdr_stream *xdr,
- struct nfs42_layoutstat_args *args,
+ const struct nfs42_layoutstat_args *args,
struct nfs42_layoutstat_devinfo *devinfo,
struct compound_hdr *hdr)
{
@@ -189,7 +191,7 @@ static void encode_layoutstats(struct xdr_stream *xdr,
}
static void encode_clone(struct xdr_stream *xdr,
- struct nfs42_clone_args *args,
+ const struct nfs42_clone_args *args,
struct compound_hdr *hdr)
{
__be32 *p;
@@ -208,8 +210,9 @@ static void encode_clone(struct xdr_stream *xdr,
*/
static void nfs4_xdr_enc_allocate(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs42_falloc_args *args)
+ const void *data)
{
+ const struct nfs42_falloc_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -222,13 +225,26 @@ static void nfs4_xdr_enc_allocate(struct rpc_rqst *req,
encode_nops(&hdr);
}
+static void encode_copy_commit(struct xdr_stream *xdr,
+ const struct nfs42_copy_args *args,
+ struct compound_hdr *hdr)
+{
+ __be32 *p;
+
+ encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr);
+ p = reserve_space(xdr, 12);
+ p = xdr_encode_hyper(p, args->dst_pos);
+ *p = cpu_to_be32(args->count);
+}
+
/*
* Encode COPY request
*/
static void nfs4_xdr_enc_copy(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs42_copy_args *args)
+ const void *data)
{
+ const struct nfs42_copy_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -239,6 +255,7 @@ static void nfs4_xdr_enc_copy(struct rpc_rqst *req,
encode_savefh(xdr, &hdr);
encode_putfh(xdr, args->dst_fh, &hdr);
encode_copy(xdr, args, &hdr);
+ encode_copy_commit(xdr, args, &hdr);
encode_nops(&hdr);
}
@@ -247,8 +264,9 @@ static void nfs4_xdr_enc_copy(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs42_falloc_args *args)
+ const void *data)
{
+ const struct nfs42_falloc_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -266,8 +284,9 @@ static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs42_seek_args *args)
+ const void *data)
{
+ const struct nfs42_seek_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -284,8 +303,9 @@ static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs42_layoutstat_args *args)
+ const void *data)
{
+ const struct nfs42_layoutstat_args *args = data;
int i;
struct compound_hdr hdr = {
@@ -306,8 +326,9 @@ static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_clone(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs42_clone_args *args)
+ const void *data)
{
+ const struct nfs42_clone_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -433,8 +454,9 @@ static int decode_clone(struct xdr_stream *xdr)
*/
static int nfs4_xdr_dec_allocate(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs42_falloc_res *res)
+ void *data)
{
+ struct nfs42_falloc_res *res = data;
struct compound_hdr hdr;
int status;
@@ -460,8 +482,9 @@ out:
*/
static int nfs4_xdr_dec_copy(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs42_copy_res *res)
+ void *data)
{
+ struct nfs42_copy_res *res = data;
struct compound_hdr hdr;
int status;
@@ -481,6 +504,9 @@ static int nfs4_xdr_dec_copy(struct rpc_rqst *rqstp,
if (status)
goto out;
status = decode_copy(xdr, res);
+ if (status)
+ goto out;
+ status = decode_commit(xdr, &res->commit_res);
out:
return status;
}
@@ -490,8 +516,9 @@ out:
*/
static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs42_falloc_res *res)
+ void *data)
{
+ struct nfs42_falloc_res *res = data;
struct compound_hdr hdr;
int status;
@@ -517,8 +544,9 @@ out:
*/
static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs42_seek_res *res)
+ void *data)
{
+ struct nfs42_seek_res *res = data;
struct compound_hdr hdr;
int status;
@@ -541,8 +569,9 @@ out:
*/
static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs42_layoutstat_res *res)
+ void *data)
{
+ struct nfs42_layoutstat_res *res = data;
struct compound_hdr hdr;
int status, i;
@@ -571,8 +600,9 @@ out:
*/
static int nfs4_xdr_dec_clone(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs42_clone_res *res)
+ void *data)
{
+ struct nfs42_clone_res *res = data;
struct compound_hdr hdr;
int status;
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 665165833660..40bd05f05e74 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -273,14 +273,6 @@ extern int nfs4_set_rw_stateid(nfs4_stateid *stateid,
fmode_t fmode);
#if defined(CONFIG_NFS_V4_1)
-static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
-{
- return server->nfs_client->cl_session;
-}
-
-extern int nfs41_setup_sequence(struct nfs4_session *session,
- struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
- struct rpc_task *task);
extern int nfs41_sequence_done(struct rpc_task *, struct nfs4_sequence_res *);
extern int nfs4_proc_create_session(struct nfs_client *, struct rpc_cred *);
extern int nfs4_proc_destroy_session(struct nfs4_session *, struct rpc_cred *);
@@ -357,11 +349,6 @@ nfs4_state_protect_write(struct nfs_client *clp, struct rpc_clnt **clntp,
hdr->args.stable = NFS_FILE_SYNC;
}
#else /* CONFIG_NFS_v4_1 */
-static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
-{
- return NULL;
-}
-
static inline bool
is_ds_only_client(struct nfs_client *clp)
{
@@ -466,7 +453,7 @@ extern void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid);
extern void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid);
extern void nfs_release_seqid(struct nfs_seqid *seqid);
extern void nfs_free_seqid(struct nfs_seqid *seqid);
-extern int nfs40_setup_sequence(struct nfs4_slot_table *tbl,
+extern int nfs4_setup_sequence(const struct nfs_client *client,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
struct rpc_task *task);
@@ -506,13 +493,13 @@ static inline void nfs4_unregister_sysctl(void)
#endif
/* nfs4xdr.c */
-extern struct rpc_procinfo nfs4_procedures[];
+extern const struct rpc_procinfo nfs4_procedures[];
struct nfs4_mount_data;
/* callback_xdr.c */
-extern struct svc_version nfs4_callback_version1;
-extern struct svc_version nfs4_callback_version4;
+extern const struct svc_version nfs4_callback_version1;
+extern const struct svc_version nfs4_callback_version4;
static inline void nfs4_stateid_copy(nfs4_stateid *dst, const nfs4_stateid *src)
{
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 5ae9d64ea08b..50566acb5469 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -359,11 +359,9 @@ struct nfs_client *nfs4_init_client(struct nfs_client *clp,
struct nfs_client *old;
int error;
- if (clp->cl_cons_state == NFS_CS_READY) {
+ if (clp->cl_cons_state == NFS_CS_READY)
/* the client is initialised already */
- dprintk("<-- nfs4_init_client() = 0 [already %p]\n", clp);
return clp;
- }
/* Check NFS protocol revision and initialize RPC op vector */
clp->rpc_ops = &nfs_v4_clientops;
@@ -416,12 +414,12 @@ struct nfs_client *nfs4_init_client(struct nfs_client *clp,
if (clp != old)
clp->cl_preserve_clid = true;
nfs_put_client(clp);
+ clear_bit(NFS_CS_TSM_POSSIBLE, &clp->cl_flags);
return old;
error:
nfs_mark_client_ready(clp, error);
nfs_put_client(clp);
- dprintk("<-- nfs4_init_client() = xerror %d\n", error);
return ERR_PTR(error);
}
@@ -469,6 +467,50 @@ static bool nfs4_same_verifier(nfs4_verifier *v1, nfs4_verifier *v2)
return memcmp(v1->data, v2->data, sizeof(v1->data)) == 0;
}
+static int nfs4_match_client(struct nfs_client *pos, struct nfs_client *new,
+ struct nfs_client **prev, struct nfs_net *nn)
+{
+ int status;
+
+ if (pos->rpc_ops != new->rpc_ops)
+ return 1;
+
+ if (pos->cl_minorversion != new->cl_minorversion)
+ return 1;
+
+ /* If "pos" isn't marked ready, we can't trust the
+ * remaining fields in "pos", especially the client
+ * ID and serverowner fields. Wait for CREATE_SESSION
+ * to finish. */
+ if (pos->cl_cons_state > NFS_CS_READY) {
+ atomic_inc(&pos->cl_count);
+ spin_unlock(&nn->nfs_client_lock);
+
+ nfs_put_client(*prev);
+ *prev = pos;
+
+ status = nfs_wait_client_init_complete(pos);
+ spin_lock(&nn->nfs_client_lock);
+
+ if (status < 0)
+ return status;
+ }
+
+ if (pos->cl_cons_state != NFS_CS_READY)
+ return 1;
+
+ if (pos->cl_clientid != new->cl_clientid)
+ return 1;
+
+ /* NFSv4.1 always uses the uniform string, however someone
+ * might switch the uniquifier string on us.
+ */
+ if (!nfs4_match_client_owner_id(pos, new))
+ return 1;
+
+ return 0;
+}
+
/**
* nfs40_walk_client_list - Find server that recognizes a client ID
*
@@ -497,34 +539,10 @@ int nfs40_walk_client_list(struct nfs_client *new,
spin_lock(&nn->nfs_client_lock);
list_for_each_entry(pos, &nn->nfs_client_list, cl_share_link) {
- if (pos->rpc_ops != new->rpc_ops)
- continue;
-
- if (pos->cl_minorversion != new->cl_minorversion)
- continue;
-
- /* If "pos" isn't marked ready, we can't trust the
- * remaining fields in "pos" */
- if (pos->cl_cons_state > NFS_CS_READY) {
- atomic_inc(&pos->cl_count);
- spin_unlock(&nn->nfs_client_lock);
-
- nfs_put_client(prev);
- prev = pos;
-
- status = nfs_wait_client_init_complete(pos);
- if (status < 0)
- goto out;
- status = -NFS4ERR_STALE_CLIENTID;
- spin_lock(&nn->nfs_client_lock);
- }
- if (pos->cl_cons_state != NFS_CS_READY)
- continue;
-
- if (pos->cl_clientid != new->cl_clientid)
- continue;
-
- if (!nfs4_match_client_owner_id(pos, new))
+ status = nfs4_match_client(pos, new, &prev, nn);
+ if (status < 0)
+ goto out_unlock;
+ if (status != 0)
continue;
/*
* We just sent a new SETCLIENTID, which should have
@@ -557,8 +575,6 @@ int nfs40_walk_client_list(struct nfs_client *new,
prev = NULL;
*result = pos;
- dprintk("NFS: <-- %s using nfs_client = %p ({%d})\n",
- __func__, pos, atomic_read(&pos->cl_count));
goto out;
case -ERESTARTSYS:
case -ETIMEDOUT:
@@ -572,32 +588,17 @@ int nfs40_walk_client_list(struct nfs_client *new,
spin_lock(&nn->nfs_client_lock);
}
+out_unlock:
spin_unlock(&nn->nfs_client_lock);
/* No match found. The server lost our clientid */
out:
nfs_put_client(prev);
- dprintk("NFS: <-- %s status = %d\n", __func__, status);
return status;
}
#ifdef CONFIG_NFS_V4_1
/*
- * Returns true if the client IDs match
- */
-static bool nfs4_match_clientids(u64 a, u64 b)
-{
- if (a != b) {
- dprintk("NFS: --> %s client ID %llx does not match %llx\n",
- __func__, a, b);
- return false;
- }
- dprintk("NFS: --> %s client ID %llx matches %llx\n",
- __func__, a, b);
- return true;
-}
-
-/*
* Returns true if the server major ids match
*/
static bool
@@ -605,36 +606,8 @@ nfs4_check_serverowner_major_id(struct nfs41_server_owner *o1,
struct nfs41_server_owner *o2)
{
if (o1->major_id_sz != o2->major_id_sz)
- goto out_major_mismatch;
- if (memcmp(o1->major_id, o2->major_id, o1->major_id_sz) != 0)
- goto out_major_mismatch;
-
- dprintk("NFS: --> %s server owner major IDs match\n", __func__);
- return true;
-
-out_major_mismatch:
- dprintk("NFS: --> %s server owner major IDs do not match\n",
- __func__);
- return false;
-}
-
-/*
- * Returns true if server minor ids match
- */
-static bool
-nfs4_check_serverowner_minor_id(struct nfs41_server_owner *o1,
- struct nfs41_server_owner *o2)
-{
- /* Check eir_server_owner so_minor_id */
- if (o1->minor_id != o2->minor_id)
- goto out_minor_mismatch;
-
- dprintk("NFS: --> %s server owner minor IDs match\n", __func__);
- return true;
-
-out_minor_mismatch:
- dprintk("NFS: --> %s server owner minor IDs do not match\n", __func__);
- return false;
+ return false;
+ return memcmp(o1->major_id, o2->major_id, o1->major_id_sz) == 0;
}
/*
@@ -645,18 +618,9 @@ nfs4_check_server_scope(struct nfs41_server_scope *s1,
struct nfs41_server_scope *s2)
{
if (s1->server_scope_sz != s2->server_scope_sz)
- goto out_scope_mismatch;
- if (memcmp(s1->server_scope, s2->server_scope,
- s1->server_scope_sz) != 0)
- goto out_scope_mismatch;
-
- dprintk("NFS: --> %s server scopes match\n", __func__);
- return true;
-
-out_scope_mismatch:
- dprintk("NFS: --> %s server scopes do not match\n",
- __func__);
- return false;
+ return false;
+ return memcmp(s1->server_scope, s2->server_scope,
+ s1->server_scope_sz) == 0;
}
/**
@@ -680,7 +644,7 @@ int nfs4_detect_session_trunking(struct nfs_client *clp,
struct rpc_xprt *xprt)
{
/* Check eir_clientid */
- if (!nfs4_match_clientids(clp->cl_clientid, res->clientid))
+ if (clp->cl_clientid != res->clientid)
goto out_err;
/* Check eir_server_owner so_major_id */
@@ -689,8 +653,7 @@ int nfs4_detect_session_trunking(struct nfs_client *clp,
goto out_err;
/* Check eir_server_owner so_minor_id */
- if (!nfs4_check_serverowner_minor_id(clp->cl_serverowner,
- res->server_owner))
+ if (clp->cl_serverowner->minor_id != res->server_owner->minor_id)
goto out_err;
/* Check eir_server_scope */
@@ -739,33 +702,10 @@ int nfs41_walk_client_list(struct nfs_client *new,
if (pos == new)
goto found;
- if (pos->rpc_ops != new->rpc_ops)
- continue;
-
- if (pos->cl_minorversion != new->cl_minorversion)
- continue;
-
- /* If "pos" isn't marked ready, we can't trust the
- * remaining fields in "pos", especially the client
- * ID and serverowner fields. Wait for CREATE_SESSION
- * to finish. */
- if (pos->cl_cons_state > NFS_CS_READY) {
- atomic_inc(&pos->cl_count);
- spin_unlock(&nn->nfs_client_lock);
-
- nfs_put_client(prev);
- prev = pos;
-
- status = nfs_wait_client_init_complete(pos);
- spin_lock(&nn->nfs_client_lock);
- if (status < 0)
- break;
- status = -NFS4ERR_STALE_CLIENTID;
- }
- if (pos->cl_cons_state != NFS_CS_READY)
- continue;
-
- if (!nfs4_match_clientids(pos->cl_clientid, new->cl_clientid))
+ status = nfs4_match_client(pos, new, &prev, nn);
+ if (status < 0)
+ goto out;
+ if (status != 0)
continue;
/*
@@ -777,23 +717,15 @@ int nfs41_walk_client_list(struct nfs_client *new,
new->cl_serverowner))
continue;
- /* Unlike NFSv4.0, we know that NFSv4.1 always uses the
- * uniform string, however someone might switch the
- * uniquifier string on us.
- */
- if (!nfs4_match_client_owner_id(pos, new))
- continue;
found:
atomic_inc(&pos->cl_count);
*result = pos;
status = 0;
- dprintk("NFS: <-- %s using nfs_client = %p ({%d})\n",
- __func__, pos, atomic_read(&pos->cl_count));
break;
}
+out:
spin_unlock(&nn->nfs_client_lock);
- dprintk("NFS: <-- %s status = %d\n", __func__, status);
nfs_put_client(prev);
return status;
}
@@ -916,26 +848,21 @@ static int nfs4_set_client(struct nfs_server *server,
.timeparms = timeparms,
};
struct nfs_client *clp;
- int error;
-
- dprintk("--> nfs4_set_client()\n");
if (server->flags & NFS_MOUNT_NORESVPORT)
set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
if (server->options & NFS_OPTION_MIGRATION)
set_bit(NFS_CS_MIGRATION, &cl_init.init_flags);
+ if (test_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status))
+ set_bit(NFS_CS_TSM_POSSIBLE, &cl_init.init_flags);
/* Allocate or find a client reference we can use */
clp = nfs_get_client(&cl_init);
- if (IS_ERR(clp)) {
- error = PTR_ERR(clp);
- goto error;
- }
+ if (IS_ERR(clp))
+ return PTR_ERR(clp);
- if (server->nfs_client == clp) {
- error = -ELOOP;
- goto error;
- }
+ if (server->nfs_client == clp)
+ return -ELOOP;
/*
* Query for the lease time on clientid setup or renewal
@@ -947,11 +874,7 @@ static int nfs4_set_client(struct nfs_server *server,
set_bit(NFS_CS_CHECK_LEASE_TIME, &clp->cl_res_state);
server->nfs_client = clp;
- dprintk("<-- nfs4_set_client() = 0 [new %p]\n", clp);
return 0;
-error:
- dprintk("<-- nfs4_set_client() = xerror %d\n", error);
- return error;
}
/*
@@ -982,7 +905,6 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_server *mds_srv,
.net = mds_clp->cl_net,
.timeparms = &ds_timeout,
};
- struct nfs_client *clp;
char buf[INET6_ADDRSTRLEN + 1];
if (rpc_ntop(ds_addr, buf, sizeof(buf)) <= 0)
@@ -998,10 +920,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_server *mds_srv,
* (section 13.1 RFC 5661).
*/
nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans);
- clp = nfs_get_client(&cl_init);
-
- dprintk("<-- %s %p\n", __func__, clp);
- return clp;
+ return nfs_get_client(&cl_init);
}
EXPORT_SYMBOL_GPL(nfs4_set_ds_client);
@@ -1023,9 +942,9 @@ static void nfs4_session_set_rwsize(struct nfs_server *server)
server_resp_sz = sess->fc_attrs.max_resp_sz - nfs41_maxread_overhead;
server_rqst_sz = sess->fc_attrs.max_rqst_sz - nfs41_maxwrite_overhead;
- if (server->rsize > server_resp_sz)
+ if (!server->rsize || server->rsize > server_resp_sz)
server->rsize = server_resp_sz;
- if (server->wsize > server_rqst_sz)
+ if (!server->wsize || server->wsize > server_rqst_sz)
server->wsize = server_rqst_sz;
#endif /* CONFIG_NFS_V4_1 */
}
@@ -1098,8 +1017,6 @@ static int nfs4_init_server(struct nfs_server *server,
struct rpc_timeout timeparms;
int error;
- dprintk("--> nfs4_init_server()\n");
-
nfs_init_timeout_values(&timeparms, data->nfs_server.protocol,
data->timeo, data->retrans);
@@ -1127,7 +1044,7 @@ static int nfs4_init_server(struct nfs_server *server,
data->minorversion,
data->net);
if (error < 0)
- goto error;
+ return error;
if (data->rsize)
server->rsize = nfs_block_size(data->rsize, NULL);
@@ -1138,16 +1055,10 @@ static int nfs4_init_server(struct nfs_server *server,
server->acregmax = data->acregmax * HZ;
server->acdirmin = data->acdirmin * HZ;
server->acdirmax = data->acdirmax * HZ;
+ server->port = data->nfs_server.port;
- server->port = data->nfs_server.port;
-
- error = nfs_init_server_rpcclient(server, &timeparms,
- data->selected_flavor);
-
-error:
- /* Done */
- dprintk("<-- nfs4_init_server() = %d\n", error);
- return error;
+ return nfs_init_server_rpcclient(server, &timeparms,
+ data->selected_flavor);
}
/*
@@ -1163,8 +1074,6 @@ struct nfs_server *nfs4_create_server(struct nfs_mount_info *mount_info,
bool auth_probe;
int error;
- dprintk("--> nfs4_create_server()\n");
-
server = nfs_alloc_server();
if (!server)
return ERR_PTR(-ENOMEM);
@@ -1180,12 +1089,10 @@ struct nfs_server *nfs4_create_server(struct nfs_mount_info *mount_info,
if (error < 0)
goto error;
- dprintk("<-- nfs4_create_server() = %p\n", server);
return server;
error:
nfs_free_server(server);
- dprintk("<-- nfs4_create_server() = error %d\n", error);
return ERR_PTR(error);
}
@@ -1200,8 +1107,6 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
bool auth_probe;
int error;
- dprintk("--> nfs4_create_referral_server()\n");
-
server = nfs_alloc_server();
if (!server)
return ERR_PTR(-ENOMEM);
@@ -1235,12 +1140,10 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
if (error < 0)
goto error;
- dprintk("<-- nfs_create_referral_server() = %p\n", server);
return server;
error:
nfs_free_server(server);
- dprintk("<-- nfs4_create_referral_server() = error %d\n", error);
return ERR_PTR(error);
}
@@ -1300,54 +1203,32 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname,
struct sockaddr *localaddr = (struct sockaddr *)&address;
int error;
- dprintk("--> %s: move FSID %llx:%llx to \"%s\")\n", __func__,
- (unsigned long long)server->fsid.major,
- (unsigned long long)server->fsid.minor,
- hostname);
-
error = rpc_switch_client_transport(clnt, &xargs, clnt->cl_timeout);
- if (error != 0) {
- dprintk("<-- %s(): rpc_switch_client_transport returned %d\n",
- __func__, error);
- goto out;
- }
+ if (error != 0)
+ return error;
error = rpc_localaddr(clnt, localaddr, sizeof(address));
- if (error != 0) {
- dprintk("<-- %s(): rpc_localaddr returned %d\n",
- __func__, error);
- goto out;
- }
+ if (error != 0)
+ return error;
- error = -EAFNOSUPPORT;
- if (rpc_ntop(localaddr, buf, sizeof(buf)) == 0) {
- dprintk("<-- %s(): rpc_ntop returned %d\n",
- __func__, error);
- goto out;
- }
+ if (rpc_ntop(localaddr, buf, sizeof(buf)) == 0)
+ return -EAFNOSUPPORT;
nfs_server_remove_lists(server);
+ set_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);
error = nfs4_set_client(server, hostname, sap, salen, buf,
clp->cl_proto, clnt->cl_timeout,
clp->cl_minorversion, net);
+ clear_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);
nfs_put_client(clp);
if (error != 0) {
nfs_server_insert_lists(server);
- dprintk("<-- %s(): nfs4_set_client returned %d\n",
- __func__, error);
- goto out;
+ return error;
}
if (server->nfs_client->cl_hostname == NULL)
server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);
nfs_server_insert_lists(server);
- error = nfs_probe_destination(server);
- if (error < 0)
- goto out;
-
- dprintk("<-- %s() succeeded\n", __func__);
-
-out:
- return error;
+ return nfs_probe_destination(server);
}
diff --git a/fs/nfs/nfs4getroot.c b/fs/nfs/nfs4getroot.c
index 039b3eb6d834..ac8406018962 100644
--- a/fs/nfs/nfs4getroot.c
+++ b/fs/nfs/nfs4getroot.c
@@ -14,8 +14,6 @@ int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh, bool auth_p
struct nfs_fsinfo fsinfo;
int ret = -ENOMEM;
- dprintk("--> nfs4_get_rootfh()\n");
-
fsinfo.fattr = nfs_alloc_fattr();
if (fsinfo.fattr == NULL)
goto out;
@@ -38,6 +36,5 @@ int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh, bool auth_p
memcpy(&server->fsid, &fsinfo.fattr->fsid, sizeof(server->fsid));
out:
nfs_free_fattr(fsinfo.fattr);
- dprintk("<-- nfs4_get_rootfh() = %d\n", ret);
return ret;
}
diff --git a/fs/nfs/nfs4idmap.c b/fs/nfs/nfs4idmap.c
index c444285bb1b1..dd5d27da8c0c 100644
--- a/fs/nfs/nfs4idmap.c
+++ b/fs/nfs/nfs4idmap.c
@@ -316,7 +316,7 @@ static ssize_t nfs_idmap_get_key(const char *name, size_t namelen,
if (ret < 0)
goto out_up;
- payload = user_key_payload(rkey);
+ payload = user_key_payload_rcu(rkey);
if (IS_ERR_OR_NULL(payload)) {
ret = PTR_ERR(payload);
goto out_up;
@@ -364,7 +364,8 @@ static int nfs_idmap_lookup_id(const char *name, size_t namelen, const char *typ
ret = -EINVAL;
} else {
ret = kstrtol(id_str, 10, &id_long);
- *id = (__u32)id_long;
+ if (!ret)
+ *id = (__u32)id_long;
}
return ret;
}
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index d21104912676..7d531da1bae3 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -279,7 +279,7 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
mountdata->hostname,
mountdata->mnt_path);
- mnt = vfs_kern_mount(&nfs4_referral_fs_type, 0, page, mountdata);
+ mnt = vfs_submount(mountdata->dentry, &nfs4_referral_fs_type, page, mountdata);
if (!IS_ERR(mnt))
break;
}
@@ -340,7 +340,6 @@ static struct vfsmount *nfs_follow_referral(struct dentry *dentry,
out:
free_page((unsigned long) page);
free_page((unsigned long) page2);
- dprintk("%s: done\n", __func__);
return mnt;
}
@@ -358,11 +357,9 @@ static struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *
int err;
/* BUG_ON(IS_ROOT(dentry)); */
- dprintk("%s: enter\n", __func__);
-
page = alloc_page(GFP_KERNEL);
if (page == NULL)
- goto out;
+ return mnt;
fs_locations = kmalloc(sizeof(struct nfs4_fs_locations), GFP_KERNEL);
if (fs_locations == NULL)
@@ -386,8 +383,6 @@ static struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *
out_free:
__free_page(page);
kfree(fs_locations);
-out:
- dprintk("%s: done\n", __func__);
return mnt;
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 0a0eaecf9676..a0b4e1091340 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -275,6 +275,7 @@ const u32 nfs4_fs_locations_bitmap[3] = {
static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dentry,
struct nfs4_readdir_arg *readdir)
{
+ unsigned int attrs = FATTR4_WORD0_FILEID | FATTR4_WORD0_TYPE;
__be32 *start, *p;
if (cookie > 2) {
@@ -305,8 +306,9 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
memcpy(p, ".\0\0\0", 4); /* entry */
p++;
*p++ = xdr_one; /* bitmap length */
- *p++ = htonl(FATTR4_WORD0_FILEID); /* bitmap */
- *p++ = htonl(8); /* attribute buffer length */
+ *p++ = htonl(attrs); /* bitmap */
+ *p++ = htonl(12); /* attribute buffer length */
+ *p++ = htonl(NF4DIR);
p = xdr_encode_hyper(p, NFS_FILEID(d_inode(dentry)));
}
@@ -317,8 +319,9 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
memcpy(p, "..\0\0", 4); /* entry */
p++;
*p++ = xdr_one; /* bitmap length */
- *p++ = htonl(FATTR4_WORD0_FILEID); /* bitmap */
- *p++ = htonl(8); /* attribute buffer length */
+ *p++ = htonl(attrs); /* bitmap */
+ *p++ = htonl(12); /* attribute buffer length */
+ *p++ = htonl(NF4DIR);
p = xdr_encode_hyper(p, NFS_FILEID(d_inode(dentry->d_parent)));
readdir->pgbase = (char *)p - (char *)start;
@@ -577,12 +580,7 @@ nfs4_async_handle_error(struct rpc_task *task, struct nfs_server *server,
static bool _nfs4_is_integrity_protected(struct nfs_client *clp)
{
rpc_authflavor_t flavor = clp->cl_rpcclient->cl_auth->au_flavor;
-
- if (flavor == RPC_AUTH_GSS_KRB5I ||
- flavor == RPC_AUTH_GSS_KRB5P)
- return true;
-
- return false;
+ return (flavor == RPC_AUTH_GSS_KRB5I) || (flavor == RPC_AUTH_GSS_KRB5P);
}
static void do_renew_lease(struct nfs_client *clp, unsigned long timestamp)
@@ -622,48 +620,6 @@ static void nfs4_set_sequence_privileged(struct nfs4_sequence_args *args)
args->sa_privileged = 1;
}
-int nfs40_setup_sequence(struct nfs4_slot_table *tbl,
- struct nfs4_sequence_args *args,
- struct nfs4_sequence_res *res,
- struct rpc_task *task)
-{
- struct nfs4_slot *slot;
-
- /* slot already allocated? */
- if (res->sr_slot != NULL)
- goto out_start;
-
- spin_lock(&tbl->slot_tbl_lock);
- if (nfs4_slot_tbl_draining(tbl) && !args->sa_privileged)
- goto out_sleep;
-
- slot = nfs4_alloc_slot(tbl);
- if (IS_ERR(slot)) {
- if (slot == ERR_PTR(-ENOMEM))
- task->tk_timeout = HZ >> 2;
- goto out_sleep;
- }
- spin_unlock(&tbl->slot_tbl_lock);
-
- slot->privileged = args->sa_privileged ? 1 : 0;
- args->sa_slot = slot;
- res->sr_slot = slot;
-
-out_start:
- rpc_call_start(task);
- return 0;
-
-out_sleep:
- if (args->sa_privileged)
- rpc_sleep_on_priority(&tbl->slot_tbl_waitq, task,
- NULL, RPC_PRIORITY_PRIVILEGED);
- else
- rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
- spin_unlock(&tbl->slot_tbl_lock);
- return -EAGAIN;
-}
-EXPORT_SYMBOL_GPL(nfs40_setup_sequence);
-
static void nfs40_sequence_free_slot(struct nfs4_sequence_res *res)
{
struct nfs4_slot *slot = res->sr_slot;
@@ -745,7 +701,8 @@ static int nfs41_sequence_process(struct rpc_task *task,
session = slot->table->session;
if (slot->interrupted) {
- slot->interrupted = 0;
+ if (res->sr_status != -NFS4ERR_DELAY)
+ slot->interrupted = 0;
interrupted = true;
}
@@ -815,10 +772,6 @@ static int nfs41_sequence_process(struct rpc_task *task,
case -NFS4ERR_SEQ_FALSE_RETRY:
++slot->seq_nr;
goto retry_nowait;
- case -NFS4ERR_DEADSESSION:
- case -NFS4ERR_BADSESSION:
- nfs4_schedule_session_recovery(session, res->sr_status);
- goto retry_nowait;
default:
/* Just update the slot sequence no. */
slot->seq_done = 1;
@@ -882,101 +835,14 @@ int nfs4_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
}
EXPORT_SYMBOL_GPL(nfs4_sequence_done);
-int nfs41_setup_sequence(struct nfs4_session *session,
- struct nfs4_sequence_args *args,
- struct nfs4_sequence_res *res,
- struct rpc_task *task)
-{
- struct nfs4_slot *slot;
- struct nfs4_slot_table *tbl;
-
- dprintk("--> %s\n", __func__);
- /* slot already allocated? */
- if (res->sr_slot != NULL)
- goto out_success;
-
- tbl = &session->fc_slot_table;
-
- task->tk_timeout = 0;
-
- spin_lock(&tbl->slot_tbl_lock);
- if (test_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state) &&
- !args->sa_privileged) {
- /* The state manager will wait until the slot table is empty */
- dprintk("%s session is draining\n", __func__);
- goto out_sleep;
- }
-
- slot = nfs4_alloc_slot(tbl);
- if (IS_ERR(slot)) {
- /* If out of memory, try again in 1/4 second */
- if (slot == ERR_PTR(-ENOMEM))
- task->tk_timeout = HZ >> 2;
- dprintk("<-- %s: no free slots\n", __func__);
- goto out_sleep;
- }
- spin_unlock(&tbl->slot_tbl_lock);
-
- slot->privileged = args->sa_privileged ? 1 : 0;
- args->sa_slot = slot;
-
- dprintk("<-- %s slotid=%u seqid=%u\n", __func__,
- slot->slot_nr, slot->seq_nr);
-
- res->sr_slot = slot;
- res->sr_timestamp = jiffies;
- res->sr_status_flags = 0;
- /*
- * sr_status is only set in decode_sequence, and so will remain
- * set to 1 if an rpc level failure occurs.
- */
- res->sr_status = 1;
- trace_nfs4_setup_sequence(session, args);
-out_success:
- rpc_call_start(task);
- return 0;
-out_sleep:
- /* Privileged tasks are queued with top priority */
- if (args->sa_privileged)
- rpc_sleep_on_priority(&tbl->slot_tbl_waitq, task,
- NULL, RPC_PRIORITY_PRIVILEGED);
- else
- rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
- spin_unlock(&tbl->slot_tbl_lock);
- return -EAGAIN;
-}
-EXPORT_SYMBOL_GPL(nfs41_setup_sequence);
-
-static int nfs4_setup_sequence(const struct nfs_server *server,
- struct nfs4_sequence_args *args,
- struct nfs4_sequence_res *res,
- struct rpc_task *task)
-{
- struct nfs4_session *session = nfs4_get_session(server);
- int ret = 0;
-
- if (!session)
- return nfs40_setup_sequence(server->nfs_client->cl_slot_tbl,
- args, res, task);
-
- dprintk("--> %s clp %p session %p sr_slot %u\n",
- __func__, session->clp, session, res->sr_slot ?
- res->sr_slot->slot_nr : NFS4_NO_SLOT);
-
- ret = nfs41_setup_sequence(session, args, res, task);
-
- dprintk("<-- %s status=%d\n", __func__, ret);
- return ret;
-}
-
static void nfs41_call_sync_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_call_sync_data *data = calldata;
- struct nfs4_session *session = nfs4_get_session(data->seq_server);
dprintk("--> %s data->seq_server %p\n", __func__, data->seq_server);
- nfs41_setup_sequence(session, data->seq_args, data->seq_res, task);
+ nfs4_setup_sequence(data->seq_server->nfs_client,
+ data->seq_args, data->seq_res, task);
}
static void nfs41_call_sync_done(struct rpc_task *task, void *calldata)
@@ -993,15 +859,6 @@ static const struct rpc_call_ops nfs41_call_sync_ops = {
#else /* !CONFIG_NFS_V4_1 */
-static int nfs4_setup_sequence(const struct nfs_server *server,
- struct nfs4_sequence_args *args,
- struct nfs4_sequence_res *res,
- struct rpc_task *task)
-{
- return nfs40_setup_sequence(server->nfs_client->cl_slot_tbl,
- args, res, task);
-}
-
static int nfs4_sequence_process(struct rpc_task *task, struct nfs4_sequence_res *res)
{
return nfs40_sequence_done(task, res);
@@ -1022,10 +879,68 @@ EXPORT_SYMBOL_GPL(nfs4_sequence_done);
#endif /* !CONFIG_NFS_V4_1 */
+int nfs4_setup_sequence(const struct nfs_client *client,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ struct rpc_task *task)
+{
+ struct nfs4_session *session = nfs4_get_session(client);
+ struct nfs4_slot_table *tbl = client->cl_slot_tbl;
+ struct nfs4_slot *slot;
+
+ /* slot already allocated? */
+ if (res->sr_slot != NULL)
+ goto out_start;
+
+ if (session) {
+ tbl = &session->fc_slot_table;
+ task->tk_timeout = 0;
+ }
+
+ spin_lock(&tbl->slot_tbl_lock);
+ /* The state manager will wait until the slot table is empty */
+ if (nfs4_slot_tbl_draining(tbl) && !args->sa_privileged)
+ goto out_sleep;
+
+ slot = nfs4_alloc_slot(tbl);
+ if (IS_ERR(slot)) {
+ /* Try again in 1/4 second */
+ if (slot == ERR_PTR(-ENOMEM))
+ task->tk_timeout = HZ >> 2;
+ goto out_sleep;
+ }
+ spin_unlock(&tbl->slot_tbl_lock);
+
+ slot->privileged = args->sa_privileged ? 1 : 0;
+ args->sa_slot = slot;
+
+ res->sr_slot = slot;
+ if (session) {
+ res->sr_timestamp = jiffies;
+ res->sr_status_flags = 0;
+ res->sr_status = 1;
+ }
+
+ trace_nfs4_setup_sequence(session, args);
+out_start:
+ rpc_call_start(task);
+ return 0;
+
+out_sleep:
+ if (args->sa_privileged)
+ rpc_sleep_on_priority(&tbl->slot_tbl_waitq, task,
+ NULL, RPC_PRIORITY_PRIVILEGED);
+ else
+ rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
+ spin_unlock(&tbl->slot_tbl_lock);
+ return -EAGAIN;
+}
+EXPORT_SYMBOL_GPL(nfs4_setup_sequence);
+
static void nfs40_call_sync_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_call_sync_data *data = calldata;
- nfs4_setup_sequence(data->seq_server,
+ nfs4_setup_sequence(data->seq_server->nfs_client,
data->seq_args, data->seq_res, task);
}
@@ -1122,11 +1037,11 @@ struct nfs4_opendata {
struct nfs4_state *state;
struct iattr attrs;
unsigned long timestamp;
- unsigned int rpc_done : 1;
- unsigned int file_created : 1;
- unsigned int is_recover : 1;
+ bool rpc_done;
+ bool file_created;
+ bool is_recover;
+ bool cancelled;
int rpc_status;
- int cancelled;
};
static bool nfs4_clear_cap_atomic_open_v1(struct nfs_server *server,
@@ -1330,14 +1245,6 @@ static void nfs4_opendata_put(struct nfs4_opendata *p)
kref_put(&p->kref, nfs4_opendata_free);
}
-static int nfs4_wait_for_completion_rpc_task(struct rpc_task *task)
-{
- int ret;
-
- ret = rpc_wait_for_completion_task(task);
- return ret;
-}
-
static bool nfs4_mode_match_open_stateid(struct nfs4_state *state,
fmode_t fmode)
{
@@ -1732,17 +1639,15 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
int ret;
if (!data->rpc_done) {
- if (data->rpc_status) {
- ret = data->rpc_status;
- goto err;
- }
+ if (data->rpc_status)
+ return ERR_PTR(data->rpc_status);
/* cached opens have already been processed */
goto update;
}
ret = nfs_refresh_inode(inode, &data->f_attr);
if (ret)
- goto err;
+ return ERR_PTR(ret);
if (data->o_res.delegation_type != 0)
nfs4_opendata_check_deleg(data, state);
@@ -1752,9 +1657,6 @@ update:
atomic_inc(&state->count);
return state;
-err:
- return ERR_PTR(ret);
-
}
static struct nfs4_state *
@@ -2048,8 +1950,8 @@ static void nfs4_open_confirm_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_opendata *data = calldata;
- nfs40_setup_sequence(data->o_arg.server->nfs_client->cl_slot_tbl,
- &data->c_arg.seq_args, &data->c_res.seq_res, task);
+ nfs4_setup_sequence(data->o_arg.server->nfs_client,
+ &data->c_arg.seq_args, &data->c_res.seq_res, task);
}
static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
@@ -2063,7 +1965,7 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
nfs4_stateid_copy(&data->o_res.stateid, &data->c_res.stateid);
nfs_confirm_seqid(&data->owner->so_seqid, 0);
renew_lease(data->o_res.server, data->timestamp);
- data->rpc_done = 1;
+ data->rpc_done = true;
}
}
@@ -2073,7 +1975,7 @@ static void nfs4_open_confirm_release(void *calldata)
struct nfs4_state *state = NULL;
/* If this request hasn't been cancelled, do nothing */
- if (data->cancelled == 0)
+ if (!data->cancelled)
goto out_free;
/* In case of error, no cleanup! */
if (!data->rpc_done)
@@ -2116,7 +2018,7 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data)
nfs4_init_sequence(&data->c_arg.seq_args, &data->c_res.seq_res, 1);
kref_get(&data->kref);
- data->rpc_done = 0;
+ data->rpc_done = false;
data->rpc_status = 0;
data->timestamp = jiffies;
if (data->is_recover)
@@ -2124,9 +2026,9 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data)
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
- status = nfs4_wait_for_completion_rpc_task(task);
+ status = rpc_wait_for_completion_task(task);
if (status != 0) {
- data->cancelled = 1;
+ data->cancelled = true;
smp_wmb();
} else
status = data->rpc_status;
@@ -2172,7 +2074,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
- if (nfs4_setup_sequence(data->o_arg.server,
+ if (nfs4_setup_sequence(data->o_arg.server->nfs_client,
&data->o_arg.seq_args,
&data->o_res.seq_res,
task) != 0)
@@ -2225,7 +2127,7 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata)
if (!(data->o_res.rflags & NFS4_OPEN_RESULT_CONFIRM))
nfs_confirm_seqid(&data->owner->so_seqid, 0);
}
- data->rpc_done = 1;
+ data->rpc_done = true;
}
static void nfs4_open_release(void *calldata)
@@ -2234,7 +2136,7 @@ static void nfs4_open_release(void *calldata)
struct nfs4_state *state = NULL;
/* If this request hasn't been cancelled, do nothing */
- if (data->cancelled == 0)
+ if (!data->cancelled)
goto out_free;
/* In case of error, no cleanup! */
if (data->rpc_status != 0 || !data->rpc_done)
@@ -2280,24 +2182,24 @@ static int nfs4_run_open_task(struct nfs4_opendata *data, int isrecover)
nfs4_init_sequence(&o_arg->seq_args, &o_res->seq_res, 1);
kref_get(&data->kref);
- data->rpc_done = 0;
+ data->rpc_done = false;
data->rpc_status = 0;
- data->cancelled = 0;
- data->is_recover = 0;
+ data->cancelled = false;
+ data->is_recover = false;
if (isrecover) {
nfs4_set_sequence_privileged(&o_arg->seq_args);
- data->is_recover = 1;
+ data->is_recover = true;
}
task = rpc_run_task(&task_setup_data);
- if (IS_ERR(task))
- return PTR_ERR(task);
- status = nfs4_wait_for_completion_rpc_task(task);
- if (status != 0) {
- data->cancelled = 1;
- smp_wmb();
- } else
- status = data->rpc_status;
- rpc_put_task(task);
+ if (IS_ERR(task))
+ return PTR_ERR(task);
+ status = rpc_wait_for_completion_task(task);
+ if (status != 0) {
+ data->cancelled = true;
+ smp_wmb();
+ } else
+ status = data->rpc_status;
+ rpc_put_task(task);
return status;
}
@@ -2306,7 +2208,7 @@ static int _nfs4_recover_proc_open(struct nfs4_opendata *data)
{
struct inode *dir = d_inode(data->dir);
struct nfs_openres *o_res = &data->o_res;
- int status;
+ int status;
status = nfs4_run_open_task(data, 1);
if (status != 0 || !data->rpc_done)
@@ -2314,11 +2216,8 @@ static int _nfs4_recover_proc_open(struct nfs4_opendata *data)
nfs_fattr_map_and_free_names(NFS_SERVER(dir), &data->f_attr);
- if (o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
+ if (o_res->rflags & NFS4_OPEN_RESULT_CONFIRM)
status = _nfs4_proc_open_confirm(data);
- if (status != 0)
- return status;
- }
return status;
}
@@ -2363,8 +2262,6 @@ static int nfs4_opendata_access(struct rpc_cred *cred,
if ((mask & ~cache.mask & (MAY_READ | MAY_EXEC)) == 0)
return 0;
- /* even though OPEN succeeded, access is denied. Close the file */
- nfs4_close_state(state, fmode);
return -EACCES;
}
@@ -2393,9 +2290,9 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
if (o_arg->open_flags & O_CREAT) {
if (o_arg->open_flags & O_EXCL)
- data->file_created = 1;
+ data->file_created = true;
else if (o_res->cinfo.before != o_res->cinfo.after)
- data->file_created = 1;
+ data->file_created = true;
if (data->file_created || dir->i_version != o_res->cinfo.after)
update_changeattr(dir, &o_res->cinfo,
o_res->f_attr->time_start);
@@ -2407,16 +2304,13 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
if (status != 0)
return status;
}
- if (!(o_res->f_attr->valid & NFS_ATTR_FATTR))
+ if (!(o_res->f_attr->valid & NFS_ATTR_FATTR)) {
+ nfs4_sequence_free_slot(&o_res->seq_res);
nfs4_proc_getattr(server, &o_res->fh, o_res->f_attr, o_res->f_label);
+ }
return 0;
}
-static int nfs4_recover_expired_lease(struct nfs_server *server)
-{
- return nfs4_client_recover_expired_lease(server->nfs_client);
-}
-
/*
* OPEN_EXPIRED:
* reclaim state on the server after a network partition.
@@ -2554,17 +2448,14 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state)
}
nfs4_stateid_copy(&stateid, &delegation->stateid);
- if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) {
+ if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) ||
+ !test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED,
+ &delegation->flags)) {
rcu_read_unlock();
nfs_finish_clear_delegation_stateid(state, &stateid);
return;
}
- if (!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags)) {
- rcu_read_unlock();
- return;
- }
-
cred = get_rpccred(delegation->cred);
rcu_read_unlock();
status = nfs41_test_and_free_expired_stateid(server, &stateid, cred);
@@ -2701,7 +2592,8 @@ static inline void nfs4_exclusive_attrset(struct nfs4_opendata *opendata,
/* Except MODE, it seems harmless of setting twice. */
if (opendata->o_arg.createmode != NFS4_CREATE_EXCLUSIVE &&
- attrset[1] & FATTR4_WORD1_MODE)
+ (attrset[1] & FATTR4_WORD1_MODE ||
+ attrset[2] & FATTR4_WORD2_MODE_UMASK))
sattr->ia_valid &= ~ATTR_MODE;
if (attrset[2] & FATTR4_WORD2_SECURITY_LABEL)
@@ -2730,6 +2622,7 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
ret = PTR_ERR(state);
if (IS_ERR(state))
goto out;
+ ctx->state = state;
if (server->caps & NFS_CAP_POSIX_LOCK)
set_bit(NFS_STATE_POSIX_LOCKS, &state->flags);
if (opendata->o_res.rflags & NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK)
@@ -2755,7 +2648,6 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
if (ret != 0)
goto out;
- ctx->state = state;
if (d_inode(dentry) == state->inode) {
nfs_inode_attach_open_context(ctx);
if (read_seqcount_retry(&sp->so_reclaim_seqcount, seq))
@@ -2794,7 +2686,7 @@ static int _nfs4_do_open(struct inode *dir,
dprintk("nfs4_do_open: nfs4_get_state_owner failed!\n");
goto out_err;
}
- status = nfs4_recover_expired_lease(server);
+ status = nfs4_client_recover_expired_lease(server->nfs_client);
if (status != 0)
goto err_put_state_owner;
if (d_really_is_positive(dentry))
@@ -2940,12 +2832,12 @@ static int _nfs4_do_setattr(struct inode *inode,
struct nfs_open_context *ctx)
{
struct nfs_server *server = NFS_SERVER(inode);
- struct rpc_message msg = {
+ struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETATTR],
.rpc_argp = arg,
.rpc_resp = res,
.rpc_cred = cred,
- };
+ };
struct rpc_cred *delegation_cred = NULL;
unsigned long timestamp = jiffies;
fmode_t fmode;
@@ -2993,18 +2885,18 @@ static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_state *state = ctx ? ctx->state : NULL;
- struct nfs_setattrargs arg = {
- .fh = NFS_FH(inode),
- .iap = sattr,
+ struct nfs_setattrargs arg = {
+ .fh = NFS_FH(inode),
+ .iap = sattr,
.server = server,
.bitmask = server->attr_bitmask,
.label = ilabel,
- };
- struct nfs_setattrres res = {
+ };
+ struct nfs_setattrres res = {
.fattr = fattr,
.label = olabel,
.server = server,
- };
+ };
struct nfs4_exception exception = {
.state = state,
.inode = inode,
@@ -3118,7 +3010,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
}
}
- /* hmm. we are done with the inode, and in the process of freeing
+ /* hmm. we are done with the inode, and in the process of freeing
* the state_owner. we keep this around to process errors
*/
switch (task->tk_status) {
@@ -3234,7 +3126,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
else if (calldata->arg.bitmask == NULL)
calldata->res.fattr = NULL;
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence(NFS_SERVER(inode),
+ if (nfs4_setup_sequence(NFS_SERVER(inode)->nfs_client,
&calldata->arg.seq_args,
&calldata->res.seq_res,
task) != 0)
@@ -3380,6 +3272,7 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
.rpc_resp = &res,
};
int status;
+ int i;
bitmask[0] = FATTR4_WORD0_SUPPORTED_ATTRS |
FATTR4_WORD0_FH_EXPIRE_TYPE |
@@ -3445,8 +3338,13 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
server->cache_consistency_bitmask[0] &= FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE;
server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
server->cache_consistency_bitmask[2] = 0;
+
+ /* Avoid a regression due to buggy server */
+ for (i = 0; i < ARRAY_SIZE(res.exclcreat_bitmask); i++)
+ res.exclcreat_bitmask[i] &= res.attr_bitmask[i];
memcpy(server->exclcreat_bitmask, res.exclcreat_bitmask,
sizeof(server->exclcreat_bitmask));
+
server->acl_bitmask = res.acl_bitmask;
server->fh_expire_type = res.fh_expire_type;
}
@@ -3522,16 +3420,11 @@ static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandl
.pseudoflavor = flavor,
};
struct rpc_auth *auth;
- int ret;
auth = rpcauth_create(&auth_args, server->client);
- if (IS_ERR(auth)) {
- ret = -EACCES;
- goto out;
- }
- ret = nfs4_lookup_root(server, fhandle, info);
-out:
- return ret;
+ if (IS_ERR(auth))
+ return -EACCES;
+ return nfs4_lookup_root(server, fhandle, info);
}
/*
@@ -3913,6 +3806,54 @@ nfs4_proc_lookup_mountpoint(struct inode *dir, const struct qstr *name,
return (client == NFS_CLIENT(dir)) ? rpc_clone_client(client) : client;
}
+static int _nfs4_proc_lookupp(struct inode *inode,
+ struct nfs_fh *fhandle, struct nfs_fattr *fattr,
+ struct nfs4_label *label)
+{
+ struct rpc_clnt *clnt = NFS_CLIENT(inode);
+ struct nfs_server *server = NFS_SERVER(inode);
+ int status;
+ struct nfs4_lookupp_arg args = {
+ .bitmask = server->attr_bitmask,
+ .fh = NFS_FH(inode),
+ };
+ struct nfs4_lookupp_res res = {
+ .server = server,
+ .fattr = fattr,
+ .label = label,
+ .fh = fhandle,
+ };
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOOKUPP],
+ .rpc_argp = &args,
+ .rpc_resp = &res,
+ };
+
+ args.bitmask = nfs4_bitmask(server, label);
+
+ nfs_fattr_init(fattr);
+
+ dprintk("NFS call lookupp ino=0x%lx\n", inode->i_ino);
+ status = nfs4_call_sync(clnt, server, &msg, &args.seq_args,
+ &res.seq_res, 0);
+ dprintk("NFS reply lookupp: %d\n", status);
+ return status;
+}
+
+static int nfs4_proc_lookupp(struct inode *inode, struct nfs_fh *fhandle,
+ struct nfs_fattr *fattr, struct nfs4_label *label)
+{
+ struct nfs4_exception exception = { };
+ int err;
+ do {
+ err = _nfs4_proc_lookupp(inode, fhandle, fattr, label);
+ trace_nfs4_lookupp(inode, err);
+ err = nfs4_handle_exception(NFS_SERVER(inode), err,
+ &exception);
+ } while (exception.retry);
+ return err;
+}
+
static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry)
{
struct nfs_server *server = NFS_SERVER(inode);
@@ -4114,7 +4055,7 @@ static void nfs4_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
static void nfs4_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
{
- nfs4_setup_sequence(NFS_SB(data->dentry->d_sb),
+ nfs4_setup_sequence(NFS_SB(data->dentry->d_sb)->nfs_client,
&data->args.seq_args,
&data->res.seq_res,
task);
@@ -4148,7 +4089,7 @@ static void nfs4_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
static void nfs4_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
{
- nfs4_setup_sequence(NFS_SERVER(data->old_dir),
+ nfs4_setup_sequence(NFS_SERVER(data->old_dir)->nfs_client,
&data->args.seq_args,
&data->res.seq_res,
task);
@@ -4383,7 +4324,7 @@ static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
}
static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
- u64 cookie, struct page **pages, unsigned int count, int plus)
+ u64 cookie, struct page **pages, unsigned int count, bool plus)
{
struct inode *dir = d_inode(dentry);
struct nfs4_readdir_arg args = {
@@ -4421,7 +4362,7 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
}
static int nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
- u64 cookie, struct page **pages, unsigned int count, int plus)
+ u64 cookie, struct page **pages, unsigned int count, bool plus)
{
struct nfs4_exception exception = { };
int err;
@@ -4723,14 +4664,14 @@ static void nfs4_proc_read_setup(struct nfs_pgio_header *hdr,
static int nfs4_proc_pgio_rpc_prepare(struct rpc_task *task,
struct nfs_pgio_header *hdr)
{
- if (nfs4_setup_sequence(NFS_SERVER(hdr->inode),
+ if (nfs4_setup_sequence(NFS_SERVER(hdr->inode)->nfs_client,
&hdr->args.seq_args,
&hdr->res.seq_res,
task))
return 0;
if (nfs4_set_rw_stateid(&hdr->args.stateid, hdr->args.context,
hdr->args.lock_context,
- hdr->rw_ops->rw_mode) == -EIO)
+ hdr->rw_mode) == -EIO)
return -EIO;
if (unlikely(test_bit(NFS_CONTEXT_BAD, &hdr->args.context->flags)))
return -EIO;
@@ -4822,7 +4763,7 @@ static void nfs4_proc_write_setup(struct nfs_pgio_header *hdr,
static void nfs4_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
{
- nfs4_setup_sequence(NFS_SERVER(data->inode),
+ nfs4_setup_sequence(NFS_SERVER(data->inode)->nfs_client,
&data->args.seq_args,
&data->res.seq_res,
task);
@@ -4924,8 +4865,10 @@ static int nfs4_proc_async_renew(struct nfs_client *clp, struct rpc_cred *cred,
if (!atomic_inc_not_zero(&clp->cl_count))
return -EIO;
data = kmalloc(sizeof(*data), GFP_NOFS);
- if (data == NULL)
+ if (data == NULL) {
+ nfs_put_client(clp);
return -ENOMEM;
+ }
data->client = clp;
data->timestamp = jiffies;
return rpc_call_async(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT,
@@ -4975,8 +4918,8 @@ static int buf_to_pages_noslab(const void *buf, size_t buflen,
if (newpage == NULL)
goto unwind;
memcpy(page_address(newpage), buf, len);
- buf += len;
- buflen -= len;
+ buf += len;
+ buflen -= len;
*pages++ = newpage;
rc++;
} while (buflen != 0);
@@ -5069,7 +5012,7 @@ out:
*/
static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
{
- struct page *pages[NFS4ACL_MAXPAGES] = {NULL, };
+ struct page *pages[NFS4ACL_MAXPAGES + 1] = {NULL, };
struct nfs_getaclargs args = {
.fh = NFS_FH(inode),
.acl_pages = pages,
@@ -5083,13 +5026,9 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
.rpc_argp = &args,
.rpc_resp = &res,
};
- unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE);
+ unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE) + 1;
int ret = -ENOMEM, i;
- /* As long as we're doing a round trip to the server anyway,
- * let's be prepared for a page of acl data. */
- if (npages == 0)
- npages = 1;
if (npages > ARRAY_SIZE(pages))
return -ERANGE;
@@ -5299,8 +5238,8 @@ static int _nfs4_do_set_security_label(struct inode *inode,
struct nfs_server *server = NFS_SERVER(inode);
const u32 bitmask[3] = { 0, 0, FATTR4_WORD2_SECURITY_LABEL };
struct nfs_setattrargs arg = {
- .fh = NFS_FH(inode),
- .iap = &sattr,
+ .fh = NFS_FH(inode),
+ .iap = &sattr,
.server = server,
.bitmask = bitmask,
.label = ilabel,
@@ -5311,9 +5250,9 @@ static int _nfs4_do_set_security_label(struct inode *inode,
.server = server,
};
struct rpc_message msg = {
- .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETATTR],
- .rpc_argp = &arg,
- .rpc_resp = &res,
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETATTR],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
};
int status;
@@ -5747,7 +5686,7 @@ static void nfs4_delegreturn_prepare(struct rpc_task *task, void *data)
if (!d_data->lr.roc && nfs4_wait_on_layoutreturn(d_data->inode, task))
return;
- nfs4_setup_sequence(d_data->res.server,
+ nfs4_setup_sequence(d_data->res.server->nfs_client,
&d_data->args.seq_args,
&d_data->res.seq_res,
task);
@@ -5817,7 +5756,7 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
return PTR_ERR(task);
if (!issync)
goto out;
- status = nfs4_wait_for_completion_rpc_task(task);
+ status = rpc_wait_for_completion_task(task);
if (status != 0)
goto out;
status = data->rpc_status;
@@ -5859,8 +5798,8 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOCKT],
- .rpc_argp = &arg,
- .rpc_resp = &res,
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
.rpc_cred = state->owner->so_cred,
};
struct nfs4_lock_state *lsp;
@@ -5906,6 +5845,7 @@ struct nfs4_unlockdata {
struct nfs_locku_res res;
struct nfs4_lock_state *lsp;
struct nfs_open_context *ctx;
+ struct nfs_lock_context *l_ctx;
struct file_lock fl;
struct nfs_server *server;
unsigned long timestamp;
@@ -5930,6 +5870,7 @@ static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl,
atomic_inc(&lsp->ls_count);
/* Ensure we don't close file until we're done freeing locks! */
p->ctx = get_nfs_open_context(ctx);
+ p->l_ctx = nfs_get_lock_context(ctx);
memcpy(&p->fl, fl, sizeof(p->fl));
p->server = NFS_SERVER(inode);
return p;
@@ -5940,6 +5881,7 @@ static void nfs4_locku_release_calldata(void *data)
struct nfs4_unlockdata *calldata = data;
nfs_free_seqid(calldata->arg.seqid);
nfs4_put_lock_state(calldata->lsp);
+ nfs_put_lock_context(calldata->l_ctx);
put_nfs_open_context(calldata->ctx);
kfree(calldata);
}
@@ -5981,6 +5923,10 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
{
struct nfs4_unlockdata *calldata = data;
+ if (test_bit(NFS_CONTEXT_UNLOCK, &calldata->l_ctx->open_context->flags) &&
+ nfs_async_iocounter_wait(task, calldata->l_ctx))
+ return;
+
if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
goto out_wait;
nfs4_stateid_copy(&calldata->arg.stateid, &calldata->lsp->ls_stateid);
@@ -5989,7 +5935,7 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
goto out_no_action;
}
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence(calldata->server,
+ if (nfs4_setup_sequence(calldata->server->nfs_client,
&calldata->arg.seq_args,
&calldata->res.seq_res,
task) != 0)
@@ -6032,6 +5978,8 @@ static struct rpc_task *nfs4_do_unlck(struct file_lock *fl,
* canceled lock is passed in, and it won't be an unlock.
*/
fl->fl_type = F_UNLCK;
+ if (fl->fl_flags & FL_CLOSE)
+ set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags);
data = nfs4_alloc_unlockdata(fl, ctx, lsp, seqid);
if (data == NULL) {
@@ -6087,7 +6035,7 @@ static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *
status = PTR_ERR(task);
if (IS_ERR(task))
goto out;
- status = nfs4_wait_for_completion_rpc_task(task);
+ status = rpc_wait_for_completion_task(task);
rpc_put_task(task);
out:
request->fl_flags = fl_flags;
@@ -6174,7 +6122,7 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
goto out_release_open_seqid;
}
data->timestamp = jiffies;
- if (nfs4_setup_sequence(data->server,
+ if (nfs4_setup_sequence(data->server->nfs_client,
&data->arg.seq_args,
&data->res.seq_res,
task) == 0)
@@ -6238,7 +6186,7 @@ static void nfs4_lock_release(void *calldata)
dprintk("%s: begin!\n", __func__);
nfs_free_seqid(data->arg.open_seqid);
- if (data->cancelled != 0) {
+ if (data->cancelled) {
struct rpc_task *task;
task = nfs4_do_unlck(&data->fl, data->ctx, data->lsp,
data->arg.lock_seqid);
@@ -6314,14 +6262,14 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
- ret = nfs4_wait_for_completion_rpc_task(task);
+ ret = rpc_wait_for_completion_task(task);
if (ret == 0) {
ret = data->rpc_status;
if (ret)
nfs4_handle_setlk_error(data->server, data->lsp,
data->arg.new_lock_owner, ret);
} else
- data->cancelled = 1;
+ data->cancelled = true;
rpc_put_task(task);
dprintk("%s: done, ret = %d!\n", __func__, ret);
trace_nfs4_set_lock(fl, state, &data->res.stateid, cmd, ret);
@@ -6393,8 +6341,7 @@ static int nfs41_lock_expired(struct nfs4_state *state, struct file_lock *reques
if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags) ||
test_bit(NFS_LOCK_LOST, &lsp->ls_flags))
return 0;
- status = nfs4_lock_expired(state, request);
- return status;
+ return nfs4_lock_expired(state, request);
}
#endif
@@ -6477,7 +6424,7 @@ struct nfs4_lock_waiter {
};
static int
-nfs4_wake_lock_waiter(wait_queue_t *wait, unsigned int mode, int flags, void *key)
+nfs4_wake_lock_waiter(wait_queue_entry_t *wait, unsigned int mode, int flags, void *key)
{
int ret;
struct cb_notify_lock_args *cbnl = key;
@@ -6520,7 +6467,7 @@ nfs4_retry_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
.inode = state->inode,
.owner = &owner,
.notified = false };
- wait_queue_t wait;
+ wait_queue_entry_t wait;
/* Don't bother with waitqueue if we don't expect a callback */
if (!test_bit(NFS_STATE_MAY_NOTIFY_LOCK, &state->flags))
@@ -6570,9 +6517,6 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
ctx = nfs_file_open_context(filp);
state = ctx->state;
- if (request->fl_start < 0 || request->fl_end < 0)
- return -EINVAL;
-
if (IS_GETLK(cmd)) {
if (state != NULL)
return nfs4_proc_getlk(state, F_GETLK, request);
@@ -6595,20 +6539,6 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
!test_bit(NFS_STATE_POSIX_LOCKS, &state->flags))
return -ENOLCK;
- /*
- * Don't rely on the VFS having checked the file open mode,
- * since it won't do this for flock() locks.
- */
- switch (request->fl_type) {
- case F_RDLCK:
- if (!(filp->f_mode & FMODE_READ))
- return -EBADF;
- break;
- case F_WRLCK:
- if (!(filp->f_mode & FMODE_WRITE))
- return -EBADF;
- }
-
status = nfs4_set_lock_state(state, request);
if (status != 0)
return status;
@@ -6640,8 +6570,8 @@ static void nfs4_release_lockowner_prepare(struct rpc_task *task, void *calldata
{
struct nfs_release_lockowner_data *data = calldata;
struct nfs_server *server = data->server;
- nfs40_setup_sequence(server->nfs_client->cl_slot_tbl,
- &data->args.seq_args, &data->res.seq_res, task);
+ nfs4_setup_sequence(server->nfs_client, &data->args.seq_args,
+ &data->res.seq_res, task);
data->args.lock_owner.clientid = server->nfs_client->cl_clientid;
data->timestamp = jiffies;
}
@@ -7232,11 +7162,9 @@ static bool
nfs41_same_server_scope(struct nfs41_server_scope *a,
struct nfs41_server_scope *b)
{
- if (a->server_scope_sz == b->server_scope_sz &&
- memcmp(a->server_scope, b->server_scope, a->server_scope_sz) == 0)
- return true;
-
- return false;
+ if (a->server_scope_sz != b->server_scope_sz)
+ return false;
+ return memcmp(a->server_scope, b->server_scope, a->server_scope_sz) == 0;
}
static void
@@ -7282,8 +7210,6 @@ int nfs4_proc_bind_one_conn_to_session(struct rpc_clnt *clnt,
};
struct rpc_task *task;
- dprintk("--> %s\n", __func__);
-
nfs4_copy_sessionid(&args.sessionid, &clp->cl_session->sess_id);
if (!(clp->cl_session->flags & SESSION4_BACK_CHAN))
args.dir = NFS4_CDFC4_FORE;
@@ -7303,24 +7229,20 @@ int nfs4_proc_bind_one_conn_to_session(struct rpc_clnt *clnt,
if (memcmp(res.sessionid.data,
clp->cl_session->sess_id.data, NFS4_MAX_SESSIONID_LEN)) {
dprintk("NFS: %s: Session ID mismatch\n", __func__);
- status = -EIO;
- goto out;
+ return -EIO;
}
if ((res.dir & args.dir) != res.dir || res.dir == 0) {
dprintk("NFS: %s: Unexpected direction from server\n",
__func__);
- status = -EIO;
- goto out;
+ return -EIO;
}
if (res.use_conn_in_rdma_mode != args.use_conn_in_rdma_mode) {
dprintk("NFS: %s: Server returned RDMA mode = true\n",
__func__);
- status = -EIO;
- goto out;
+ return -EIO;
}
}
-out:
- dprintk("<-- %s status= %d\n", __func__, status);
+
return status;
}
@@ -7505,12 +7427,11 @@ static void nfs4_exchange_id_done(struct rpc_task *task, void *data)
if (status == 0) {
clp->cl_clientid = cdata->res.clientid;
clp->cl_exchange_flags = cdata->res.flags;
+ clp->cl_seqid = cdata->res.seqid;
/* Client ID is not confirmed */
- if (!(cdata->res.flags & EXCHGID4_FLAG_CONFIRMED_R)) {
+ if (!(cdata->res.flags & EXCHGID4_FLAG_CONFIRMED_R))
clear_bit(NFS4_SESSION_ESTABLISHED,
- &clp->cl_session->session_state);
- clp->cl_seqid = cdata->res.seqid;
- }
+ &clp->cl_session->session_state);
kfree(clp->cl_serverowner);
clp->cl_serverowner = cdata->res.server_owner;
@@ -7549,11 +7470,11 @@ static void nfs4_exchange_id_release(void *data)
struct nfs41_exchange_id_data *cdata =
(struct nfs41_exchange_id_data *)data;
- nfs_put_client(cdata->args.client);
if (cdata->xprt) {
xprt_put(cdata->xprt);
rpc_clnt_xprt_switch_put(cdata->args.client->cl_rpcclient);
}
+ nfs_put_client(cdata->args.client);
kfree(cdata->res.impl_id);
kfree(cdata->res.server_scope);
kfree(cdata->res.server_owner);
@@ -7586,15 +7507,16 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
};
struct nfs41_exchange_id_data *calldata;
struct rpc_task *task;
- int status = -EIO;
+ int status;
if (!atomic_inc_not_zero(&clp->cl_count))
- goto out;
+ return -EIO;
- status = -ENOMEM;
calldata = kzalloc(sizeof(*calldata), GFP_NOFS);
- if (!calldata)
- goto out;
+ if (!calldata) {
+ nfs_put_client(clp);
+ return -ENOMEM;
+ }
if (!xprt)
nfs4_init_boot_verifier(clp, &verifier);
@@ -7603,10 +7525,6 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
if (status)
goto out_calldata;
- dprintk("NFS call exchange_id auth=%s, '%s'\n",
- clp->cl_rpcclient->cl_auth->au_ops->au_name,
- clp->cl_owner_id);
-
calldata->res.server_owner = kzalloc(sizeof(struct nfs41_server_owner),
GFP_NOFS);
status = -ENOMEM;
@@ -7660,10 +7578,8 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
task_setup_data.callback_data = calldata;
task = rpc_run_task(&task_setup_data);
- if (IS_ERR(task)) {
- status = PTR_ERR(task);
- goto out_impl_id;
- }
+ if (IS_ERR(task))
+ return PTR_ERR(task);
if (!xprt) {
status = rpc_wait_for_completion_task(task);
@@ -7674,13 +7590,6 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
rpc_put_task(task);
out:
- if (clp->cl_implid != NULL)
- dprintk("NFS reply exchange_id: Server Implementation ID: "
- "domain: %s, name: %s, date: %llu,%u\n",
- clp->cl_implid->domain, clp->cl_implid->name,
- clp->cl_implid->date.seconds,
- clp->cl_implid->date.nseconds);
- dprintk("NFS reply exchange_id: %d\n", status);
return status;
out_impl_id:
@@ -7691,6 +7600,7 @@ out_server_owner:
kfree(calldata->res.server_owner);
out_calldata:
kfree(calldata);
+ nfs_put_client(clp);
goto out;
}
@@ -7831,7 +7741,7 @@ static void nfs4_get_lease_time_prepare(struct rpc_task *task,
dprintk("--> %s\n", __func__);
/* just setup sequence, do not trigger session recovery
since we're invoked within one */
- nfs41_setup_sequence(data->clp->cl_session,
+ nfs4_setup_sequence(data->clp,
&data->args->la_seq_args,
&data->res->lr_seq_res,
task);
@@ -7897,17 +7807,13 @@ int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo)
nfs4_init_sequence(&args.la_seq_args, &res.lr_seq_res, 0);
nfs4_set_sequence_privileged(&args.la_seq_args);
- dprintk("--> %s\n", __func__);
task = rpc_run_task(&task_setup);
if (IS_ERR(task))
- status = PTR_ERR(task);
- else {
- status = task->tk_status;
- rpc_put_task(task);
- }
- dprintk("<-- %s return %d\n", __func__, status);
+ return PTR_ERR(task);
+ status = task->tk_status;
+ rpc_put_task(task);
return status;
}
@@ -8202,7 +8108,7 @@ static void nfs41_sequence_prepare(struct rpc_task *task, void *data)
args = task->tk_msg.rpc_argp;
res = task->tk_msg.rpc_resp;
- nfs41_setup_sequence(clp->cl_session, args, res, task);
+ nfs4_setup_sequence(clp, args, res, task);
}
static const struct rpc_call_ops nfs41_sequence_ops = {
@@ -8290,7 +8196,7 @@ static void nfs4_reclaim_complete_prepare(struct rpc_task *task, void *data)
{
struct nfs4_reclaim_complete_data *calldata = data;
- nfs41_setup_sequence(calldata->clp->cl_session,
+ nfs4_setup_sequence(calldata->clp,
&calldata->arg.seq_args,
&calldata->res.seq_res,
task);
@@ -8308,6 +8214,12 @@ static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nf
/* fall through */
case -NFS4ERR_RETRY_UNCACHED_REP:
return -EAGAIN;
+ case -NFS4ERR_BADSESSION:
+ case -NFS4ERR_DEADSESSION:
+ case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
+ nfs4_schedule_session_recovery(clp->cl_session,
+ task->tk_status);
+ break;
default:
nfs4_schedule_lease_recovery(clp);
}
@@ -8382,11 +8294,10 @@ static int nfs41_proc_reclaim_complete(struct nfs_client *clp,
status = PTR_ERR(task);
goto out;
}
- status = nfs4_wait_for_completion_rpc_task(task);
+ status = rpc_wait_for_completion_task(task);
if (status == 0)
status = task->tk_status;
rpc_put_task(task);
- return 0;
out:
dprintk("<-- %s status=%d\n", __func__, status);
return status;
@@ -8397,10 +8308,9 @@ nfs4_layoutget_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_layoutget *lgp = calldata;
struct nfs_server *server = NFS_SERVER(lgp->args.inode);
- struct nfs4_session *session = nfs4_get_session(server);
dprintk("--> %s\n", __func__);
- nfs41_setup_sequence(session, &lgp->args.seq_args,
+ nfs4_setup_sequence(server->nfs_client, &lgp->args.seq_args,
&lgp->res.seq_res, task);
dprintk("<-- %s\n", __func__);
}
@@ -8486,6 +8396,7 @@ nfs4_layoutget_handle_exception(struct rpc_task *task,
*/
pnfs_mark_layout_stateid_invalid(lo, &head);
spin_unlock(&inode->i_lock);
+ nfs_commit_inode(inode, 0);
pnfs_free_lseg_list(&head);
status = -EAGAIN;
goto out;
@@ -8556,6 +8467,7 @@ static void nfs4_layoutget_release(void *calldata)
size_t max_pages = max_response_pages(server);
dprintk("--> %s\n", __func__);
+ nfs4_sequence_free_slot(&lgp->res.seq_res);
nfs4_free_pages(lgp->args.layout.pages, max_pages);
pnfs_put_layout_hdr(NFS_I(inode)->layout);
put_nfs_open_context(lgp->args.ctx);
@@ -8615,7 +8527,7 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout, gfp_t gfp_flags)
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return ERR_CAST(task);
- status = nfs4_wait_for_completion_rpc_task(task);
+ status = rpc_wait_for_completion_task(task);
if (status == 0) {
status = nfs4_layoutget_handle_exception(task, lgp, &exception);
*timeout = exception.timeout;
@@ -8630,7 +8542,6 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout, gfp_t gfp_flags)
/* if layoutp->len is 0, nfs4_layoutget_prepare called rpc_exit */
if (status == 0 && lgp->res.layoutp->len)
lseg = pnfs_layout_process(lgp);
- nfs4_sequence_free_slot(&lgp->res.seq_res);
rpc_put_task(task);
dprintk("<-- %s status=%d\n", __func__, status);
if (status)
@@ -8644,7 +8555,7 @@ nfs4_layoutreturn_prepare(struct rpc_task *task, void *calldata)
struct nfs4_layoutreturn *lrp = calldata;
dprintk("--> %s\n", __func__);
- nfs41_setup_sequence(lrp->clp->cl_session,
+ nfs4_setup_sequence(lrp->clp,
&lrp->args.seq_args,
&lrp->res.seq_res,
task);
@@ -8794,9 +8705,8 @@ static void nfs4_layoutcommit_prepare(struct rpc_task *task, void *calldata)
{
struct nfs4_layoutcommit_data *data = calldata;
struct nfs_server *server = NFS_SERVER(data->args.inode);
- struct nfs4_session *session = nfs4_get_session(server);
- nfs41_setup_sequence(session,
+ nfs4_setup_sequence(server->nfs_client,
&data->args.seq_args,
&data->res.seq_res,
task);
@@ -9120,7 +9030,7 @@ struct nfs_free_stateid_data {
static void nfs41_free_stateid_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_free_stateid_data *data = calldata;
- nfs41_setup_sequence(nfs4_get_session(data->server),
+ nfs4_setup_sequence(data->server->nfs_client,
&data->args.seq_args,
&data->res.seq_res,
task);
@@ -9232,10 +9142,8 @@ static bool nfs41_match_stateid(const nfs4_stateid *s1,
if (s1->seqid == s2->seqid)
return true;
- if (s1->seqid == 0 || s2->seqid == 0)
- return true;
- return false;
+ return s1->seqid == 0 || s2->seqid == 0;
}
#endif /* CONFIG_NFS_V4_1 */
@@ -9455,6 +9363,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.getattr = nfs4_proc_getattr,
.setattr = nfs4_proc_setattr,
.lookup = nfs4_proc_lookup,
+ .lookupp = nfs4_proc_lookupp,
.access = nfs4_proc_access,
.readlink = nfs4_proc_readlink,
.create = nfs4_proc_create,
diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c
index 82e77198d17e..1f8c2ae43a8d 100644
--- a/fs/nfs/nfs4renewd.c
+++ b/fs/nfs/nfs4renewd.c
@@ -153,7 +153,7 @@ void nfs4_set_lease_period(struct nfs_client *clp,
spin_unlock(&clp->cl_lock);
/* Cap maximum reconnect timeout at 1/2 lease period */
- rpc_cap_max_reconnect_timeout(clp->cl_rpcclient, lease >> 1);
+ rpc_set_connect_timeout(clp->cl_rpcclient, lease, lease >> 1);
}
/*
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index dae385500005..dfae4880eacb 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -103,6 +103,11 @@ static inline bool nfs4_test_locked_slot(const struct nfs4_slot_table *tbl,
return !!test_bit(slotid, tbl->used_slots);
}
+static inline struct nfs4_session *nfs4_get_session(const struct nfs_client *clp)
+{
+ return clp->cl_session;
+}
+
#if defined(CONFIG_NFS_V4_1)
extern void nfs41_set_target_slotid(struct nfs4_slot_table *tbl,
u32 target_highest_slotid);
@@ -170,6 +175,8 @@ static inline int nfs4_has_persistent_session(const struct nfs_client *clp)
return 0;
}
+#define nfs_session_id_hash(session) (0)
+
#endif /* defined(CONFIG_NFS_V4_1) */
#endif /* IS_ENABLED(CONFIG_NFS_V4) */
#endif /* __LINUX_FS_NFS_NFS4SESSION_H */
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index daeb94e3acd4..0378e2257ca7 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -352,11 +352,17 @@ int nfs41_discover_server_trunking(struct nfs_client *clp,
if (clp != *result)
return 0;
- /* Purge state if the client id was established in a prior instance */
- if (clp->cl_exchange_flags & EXCHGID4_FLAG_CONFIRMED_R)
- set_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
- else
- set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+ /*
+ * Purge state if the client id was established in a prior
+ * instance and the client id could not have arrived on the
+ * server via Transparent State Migration.
+ */
+ if (clp->cl_exchange_flags & EXCHGID4_FLAG_CONFIRMED_R) {
+ if (!test_bit(NFS_CS_TSM_POSSIBLE, &clp->cl_flags))
+ set_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
+ else
+ set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+ }
nfs4_schedule_state_manager(clp);
status = nfs_wait_client_init_complete(clp);
if (status < 0)
@@ -868,7 +874,7 @@ static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_
for(;;) {
spin_lock(&state->state_lock);
- lsp = __nfs4_find_lock_state(state, owner, 0);
+ lsp = __nfs4_find_lock_state(state, owner, NULL);
if (lsp != NULL)
break;
if (new != NULL) {
@@ -1649,13 +1655,14 @@ static void nfs4_state_start_reclaim_reboot(struct nfs_client *clp)
nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_reboot);
}
-static void nfs4_reclaim_complete(struct nfs_client *clp,
+static int nfs4_reclaim_complete(struct nfs_client *clp,
const struct nfs4_state_recovery_ops *ops,
struct rpc_cred *cred)
{
/* Notify the server we're done reclaiming our state */
if (ops->reclaim_complete)
- (void)ops->reclaim_complete(clp, cred);
+ return ops->reclaim_complete(clp, cred);
+ return 0;
}
static void nfs4_clear_reclaim_server(struct nfs_server *server)
@@ -1702,13 +1709,16 @@ static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp)
{
const struct nfs4_state_recovery_ops *ops;
struct rpc_cred *cred;
+ int err;
if (!nfs4_state_clear_reclaim_reboot(clp))
return;
ops = clp->cl_mvops->reboot_recovery_ops;
cred = nfs4_get_clid_cred(clp);
- nfs4_reclaim_complete(clp, ops, cred);
+ err = nfs4_reclaim_complete(clp, ops, cred);
put_rpccred(cred);
+ if (err == -NFS4ERR_CONN_NOT_BOUND_TO_SESSION)
+ set_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state);
}
static void nfs4_state_start_reclaim_nograce(struct nfs_client *clp)
@@ -2130,6 +2140,8 @@ again:
put_rpccred(cred);
switch (status) {
case 0:
+ case -EINTR:
+ case -ERESTARTSYS:
break;
case -ETIMEDOUT:
if (clnt->cl_softrtry)
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index cfb8f7ce5cf6..be1da19c65d6 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -241,38 +241,6 @@ DEFINE_NFS4_CLIENTID_EVENT(nfs4_bind_conn_to_session);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_sequence);
DEFINE_NFS4_CLIENTID_EVENT(nfs4_reclaim_complete);
-TRACE_EVENT(nfs4_setup_sequence,
- TP_PROTO(
- const struct nfs4_session *session,
- const struct nfs4_sequence_args *args
- ),
- TP_ARGS(session, args),
-
- TP_STRUCT__entry(
- __field(unsigned int, session)
- __field(unsigned int, slot_nr)
- __field(unsigned int, seq_nr)
- __field(unsigned int, highest_used_slotid)
- ),
-
- TP_fast_assign(
- const struct nfs4_slot *sa_slot = args->sa_slot;
- __entry->session = nfs_session_id_hash(&session->sess_id);
- __entry->slot_nr = sa_slot->slot_nr;
- __entry->seq_nr = sa_slot->seq_nr;
- __entry->highest_used_slotid =
- sa_slot->table->highest_used_slotid;
- ),
- TP_printk(
- "session=0x%08x slot_nr=%u seq_nr=%u "
- "highest_used_slotid=%u",
- __entry->session,
- __entry->slot_nr,
- __entry->seq_nr,
- __entry->highest_used_slotid
- )
-);
-
#define show_nfs4_sequence_status_flags(status) \
__print_flags((unsigned long)status, "|", \
{ SEQ4_STATUS_CB_PATH_DOWN, "CB_PATH_DOWN" }, \
@@ -382,6 +350,38 @@ TRACE_EVENT(nfs4_cb_sequence,
);
#endif /* CONFIG_NFS_V4_1 */
+TRACE_EVENT(nfs4_setup_sequence,
+ TP_PROTO(
+ const struct nfs4_session *session,
+ const struct nfs4_sequence_args *args
+ ),
+ TP_ARGS(session, args),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, session)
+ __field(unsigned int, slot_nr)
+ __field(unsigned int, seq_nr)
+ __field(unsigned int, highest_used_slotid)
+ ),
+
+ TP_fast_assign(
+ const struct nfs4_slot *sa_slot = args->sa_slot;
+ __entry->session = session ? nfs_session_id_hash(&session->sess_id) : 0;
+ __entry->slot_nr = sa_slot->slot_nr;
+ __entry->seq_nr = sa_slot->seq_nr;
+ __entry->highest_used_slotid =
+ sa_slot->table->highest_used_slotid;
+ ),
+ TP_printk(
+ "session=0x%08x slot_nr=%u seq_nr=%u "
+ "highest_used_slotid=%u",
+ __entry->session,
+ __entry->slot_nr,
+ __entry->seq_nr,
+ __entry->highest_used_slotid
+ )
+);
+
DECLARE_EVENT_CLASS(nfs4_open_event,
TP_PROTO(
const struct nfs_open_context *ctx,
@@ -891,6 +891,35 @@ DEFINE_NFS4_LOOKUP_EVENT(nfs4_remove);
DEFINE_NFS4_LOOKUP_EVENT(nfs4_get_fs_locations);
DEFINE_NFS4_LOOKUP_EVENT(nfs4_secinfo);
+TRACE_EVENT(nfs4_lookupp,
+ TP_PROTO(
+ const struct inode *inode,
+ int error
+ ),
+
+ TP_ARGS(inode, error),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(u64, ino)
+ __field(int, error)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = NFS_FILEID(inode);
+ __entry->error = error;
+ ),
+
+ TP_printk(
+ "error=%d (%s) inode=%02x:%02x:%llu",
+ __entry->error,
+ show_nfsv4_errors(__entry->error),
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ (unsigned long long)__entry->ino
+ )
+);
+
TRACE_EVENT(nfs4_rename,
TP_PROTO(
const struct inode *olddir,
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index e9255cb453e6..fa3eb361d4f8 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -159,6 +159,8 @@ static int nfs4_stat_to_errno(int);
(op_decode_hdr_maxsz)
#define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
#define decode_lookup_maxsz (op_decode_hdr_maxsz)
+#define encode_lookupp_maxsz (op_encode_hdr_maxsz)
+#define decode_lookupp_maxsz (op_decode_hdr_maxsz)
#define encode_share_access_maxsz \
(2)
#define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz)
@@ -169,8 +171,10 @@ static int nfs4_stat_to_errno(int);
open_owner_id_maxsz + \
encode_opentype_maxsz + \
encode_claim_null_maxsz)
+#define decode_space_limit_maxsz (3)
#define decode_ace_maxsz (3 + nfs4_owner_maxsz)
#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \
+ decode_space_limit_maxsz + \
decode_ace_maxsz)
#define decode_change_info_maxsz (5)
#define decode_open_maxsz (op_decode_hdr_maxsz + \
@@ -616,6 +620,18 @@ static int nfs4_stat_to_errno(int);
decode_lookup_maxsz + \
decode_getattr_maxsz + \
decode_getfh_maxsz)
+#define NFS4_enc_lookupp_sz (compound_encode_hdr_maxsz + \
+ encode_sequence_maxsz + \
+ encode_putfh_maxsz + \
+ encode_lookupp_maxsz + \
+ encode_getattr_maxsz + \
+ encode_getfh_maxsz)
+#define NFS4_dec_lookupp_sz (compound_decode_hdr_maxsz + \
+ decode_sequence_maxsz + \
+ decode_putfh_maxsz + \
+ decode_lookupp_maxsz + \
+ decode_getattr_maxsz + \
+ decode_getfh_maxsz)
#define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putrootfh_maxsz + \
@@ -924,34 +940,22 @@ static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len)
{
- __be32 *p;
-
- p = xdr_reserve_space(xdr, len);
- xdr_encode_opaque_fixed(p, buf, len);
+ WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0);
}
static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4 + len);
- xdr_encode_opaque(p, str, len);
+ WARN_ON_ONCE(xdr_stream_encode_opaque(xdr, str, len) < 0);
}
static void encode_uint32(struct xdr_stream *xdr, u32 n)
{
- __be32 *p;
-
- p = reserve_space(xdr, 4);
- *p = cpu_to_be32(n);
+ WARN_ON_ONCE(xdr_stream_encode_u32(xdr, n) < 0);
}
static void encode_uint64(struct xdr_stream *xdr, u64 n)
{
- __be32 *p;
-
- p = reserve_space(xdr, 8);
- xdr_encode_hyper(p, n);
+ WARN_ON_ONCE(xdr_stream_encode_u64(xdr, n) < 0);
}
static void encode_nfs4_seqid(struct xdr_stream *xdr,
@@ -1010,8 +1014,9 @@ static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *ve
static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
const struct nfs4_label *label,
+ const umode_t *umask,
const struct nfs_server *server,
- bool excl_check, const umode_t *umask)
+ const uint32_t attrmask[])
{
char owner_name[IDMAP_NAMESZ];
char owner_group[IDMAP_NAMESZ];
@@ -1026,22 +1031,20 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
/*
* We reserve enough space to write the entire attribute buffer at once.
*/
- if (iap->ia_valid & ATTR_SIZE) {
+ if ((iap->ia_valid & ATTR_SIZE) && (attrmask[0] & FATTR4_WORD0_SIZE)) {
bmval[0] |= FATTR4_WORD0_SIZE;
len += 8;
}
- if (!(server->attr_bitmask[2] & FATTR4_WORD2_MODE_UMASK))
- umask = NULL;
if (iap->ia_valid & ATTR_MODE) {
- if (umask) {
+ if (umask && (attrmask[2] & FATTR4_WORD2_MODE_UMASK)) {
bmval[2] |= FATTR4_WORD2_MODE_UMASK;
len += 8;
- } else {
+ } else if (attrmask[1] & FATTR4_WORD1_MODE) {
bmval[1] |= FATTR4_WORD1_MODE;
len += 4;
}
}
- if (iap->ia_valid & ATTR_UID) {
+ if ((iap->ia_valid & ATTR_UID) && (attrmask[1] & FATTR4_WORD1_OWNER)) {
owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
if (owner_namelen < 0) {
dprintk("nfs: couldn't resolve uid %d to string\n",
@@ -1054,7 +1057,8 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
bmval[1] |= FATTR4_WORD1_OWNER;
len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
}
- if (iap->ia_valid & ATTR_GID) {
+ if ((iap->ia_valid & ATTR_GID) &&
+ (attrmask[1] & FATTR4_WORD1_OWNER_GROUP)) {
owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ);
if (owner_grouplen < 0) {
dprintk("nfs: couldn't resolve gid %d to string\n",
@@ -1066,32 +1070,26 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
bmval[1] |= FATTR4_WORD1_OWNER_GROUP;
len += 4 + (XDR_QUADLEN(owner_grouplen) << 2);
}
- if (iap->ia_valid & ATTR_ATIME_SET) {
- bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
- len += 16;
- } else if (iap->ia_valid & ATTR_ATIME) {
- bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
- len += 4;
- }
- if (iap->ia_valid & ATTR_MTIME_SET) {
- bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
- len += 16;
- } else if (iap->ia_valid & ATTR_MTIME) {
- bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
- len += 4;
+ if (attrmask[1] & FATTR4_WORD1_TIME_ACCESS_SET) {
+ if (iap->ia_valid & ATTR_ATIME_SET) {
+ bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
+ len += 16;
+ } else if (iap->ia_valid & ATTR_ATIME) {
+ bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET;
+ len += 4;
+ }
}
-
- if (excl_check) {
- const u32 *excl_bmval = server->exclcreat_bitmask;
- bmval[0] &= excl_bmval[0];
- bmval[1] &= excl_bmval[1];
- bmval[2] &= excl_bmval[2];
-
- if (!(excl_bmval[2] & FATTR4_WORD2_SECURITY_LABEL))
- label = NULL;
+ if (attrmask[1] & FATTR4_WORD1_TIME_MODIFY_SET) {
+ if (iap->ia_valid & ATTR_MTIME_SET) {
+ bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
+ len += 16;
+ } else if (iap->ia_valid & ATTR_MTIME) {
+ bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET;
+ len += 4;
+ }
}
- if (label) {
+ if (label && (attrmask[2] & FATTR4_WORD2_SECURITY_LABEL)) {
len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2);
bmval[2] |= FATTR4_WORD2_SECURITY_LABEL;
}
@@ -1198,8 +1196,8 @@ static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *
}
encode_string(xdr, create->name->len, create->name->name);
- encode_attrs(xdr, create->attrs, create->label, create->server, false,
- &create->umask);
+ encode_attrs(xdr, create->attrs, create->label, &create->umask,
+ create->server, create->server->attr_bitmask);
}
static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
@@ -1384,6 +1382,11 @@ static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struc
encode_string(xdr, name->len, name->name);
}
+static void encode_lookupp(struct xdr_stream *xdr, struct compound_hdr *hdr)
+{
+ encode_op_hdr(xdr, OP_LOOKUPP, decode_lookupp_maxsz, hdr);
+}
+
static void encode_share_access(struct xdr_stream *xdr, u32 share_access)
{
__be32 *p;
@@ -1419,13 +1422,13 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
switch(arg->createmode) {
case NFS4_CREATE_UNCHECKED:
*p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
- encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false,
- &arg->umask);
+ encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
+ arg->server, arg->server->attr_bitmask);
break;
case NFS4_CREATE_GUARDED:
*p = cpu_to_be32(NFS4_CREATE_GUARDED);
- encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false,
- &arg->umask);
+ encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
+ arg->server, arg->server->attr_bitmask);
break;
case NFS4_CREATE_EXCLUSIVE:
*p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
@@ -1434,8 +1437,8 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
case NFS4_CREATE_EXCLUSIVE4_1:
*p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
encode_nfs4_verifier(xdr, &arg->u.verifier);
- encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, true,
- &arg->umask);
+ encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
+ arg->server, arg->server->exclcreat_bitmask);
}
}
@@ -1667,7 +1670,8 @@ encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
}
static void
-encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
+encode_setacl(struct xdr_stream *xdr, const struct nfs_setaclargs *arg,
+ struct compound_hdr *hdr)
{
__be32 *p;
@@ -1691,7 +1695,8 @@ static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs
{
encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
encode_nfs4_stateid(xdr, &arg->stateid);
- encode_attrs(xdr, arg->iap, arg->label, server, false, NULL);
+ encode_attrs(xdr, arg->iap, arg->label, NULL, server,
+ server->attr_bitmask);
}
static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
@@ -1750,7 +1755,7 @@ static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, stru
#if defined(CONFIG_NFS_V4_1)
/* NFSv4.1 operations */
static void encode_bind_conn_to_session(struct xdr_stream *xdr,
- struct nfs41_bind_conn_to_session_args *args,
+ const struct nfs41_bind_conn_to_session_args *args,
struct compound_hdr *hdr)
{
__be32 *p;
@@ -1763,7 +1768,7 @@ static void encode_bind_conn_to_session(struct xdr_stream *xdr,
*p = (args->use_conn_in_rdma_mode) ? cpu_to_be32(1) : cpu_to_be32(0);
}
-static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
+static void encode_op_map(struct xdr_stream *xdr, const struct nfs4_op_map *op_map)
{
unsigned int i;
encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS);
@@ -1772,7 +1777,7 @@ static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
}
static void encode_exchange_id(struct xdr_stream *xdr,
- struct nfs41_exchange_id_args *args,
+ const struct nfs41_exchange_id_args *args,
struct compound_hdr *hdr)
{
__be32 *p;
@@ -1824,7 +1829,7 @@ static void encode_exchange_id(struct xdr_stream *xdr,
}
static void encode_create_session(struct xdr_stream *xdr,
- struct nfs41_create_session_args *args,
+ const struct nfs41_create_session_args *args,
struct compound_hdr *hdr)
{
__be32 *p;
@@ -1877,7 +1882,7 @@ static void encode_create_session(struct xdr_stream *xdr,
}
static void encode_destroy_session(struct xdr_stream *xdr,
- struct nfs4_session *session,
+ const struct nfs4_session *session,
struct compound_hdr *hdr)
{
encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
@@ -1893,7 +1898,7 @@ static void encode_destroy_clientid(struct xdr_stream *xdr,
}
static void encode_reclaim_complete(struct xdr_stream *xdr,
- struct nfs41_reclaim_complete_args *args,
+ const struct nfs41_reclaim_complete_args *args,
struct compound_hdr *hdr)
{
encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
@@ -1989,7 +1994,7 @@ encode_layoutget(struct xdr_stream *xdr,
static int
encode_layoutcommit(struct xdr_stream *xdr,
struct inode *inode,
- struct nfs4_layoutcommit_args *args,
+ const struct nfs4_layoutcommit_args *args,
struct compound_hdr *hdr)
{
__be32 *p;
@@ -2015,16 +2020,10 @@ encode_layoutcommit(struct xdr_stream *xdr,
*p++ = cpu_to_be32(0); /* Never send time_modify_changed */
*p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */
- if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) {
- NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit(
- NFS_I(inode)->layout, xdr, args);
- } else {
- encode_uint32(xdr, args->layoutupdate_len);
- if (args->layoutupdate_pages) {
- xdr_write_pages(xdr, args->layoutupdate_pages, 0,
- args->layoutupdate_len);
- }
- }
+ encode_uint32(xdr, args->layoutupdate_len);
+ if (args->layoutupdate_pages)
+ xdr_write_pages(xdr, args->layoutupdate_pages, 0,
+ args->layoutupdate_len);
return 0;
}
@@ -2034,7 +2033,6 @@ encode_layoutreturn(struct xdr_stream *xdr,
const struct nfs4_layoutreturn_args *args,
struct compound_hdr *hdr)
{
- const struct pnfs_layoutdriver_type *lr_ops = NFS_SERVER(args->inode)->pnfs_curr_ld;
__be32 *p;
encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
@@ -2051,8 +2049,6 @@ encode_layoutreturn(struct xdr_stream *xdr,
spin_unlock(&args->inode->i_lock);
if (args->ld_private->ops && args->ld_private->ops->encode)
args->ld_private->ops->encode(xdr, args, args->ld_private);
- else if (lr_ops->encode_layoutreturn)
- lr_ops->encode_layoutreturn(xdr, args);
else
encode_uint32(xdr, 0);
}
@@ -2068,7 +2064,7 @@ encode_secinfo_no_name(struct xdr_stream *xdr,
}
static void encode_test_stateid(struct xdr_stream *xdr,
- struct nfs41_test_stateid_args *args,
+ const struct nfs41_test_stateid_args *args,
struct compound_hdr *hdr)
{
encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
@@ -2077,7 +2073,7 @@ static void encode_test_stateid(struct xdr_stream *xdr,
}
static void encode_free_stateid(struct xdr_stream *xdr,
- struct nfs41_free_stateid_args *args,
+ const struct nfs41_free_stateid_args *args,
struct compound_hdr *hdr)
{
encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
@@ -2110,8 +2106,9 @@ static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
* Encode an ACCESS request
*/
static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_accessargs *args)
+ const void *data)
{
+ const struct nfs4_accessargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2128,8 +2125,9 @@ static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode LOOKUP request
*/
static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_lookup_arg *args)
+ const void *data)
{
+ const struct nfs4_lookup_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2144,12 +2142,33 @@ static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
}
/*
+ * Encode LOOKUPP request
+ */
+static void nfs4_xdr_enc_lookupp(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const void *data)
+{
+ const struct nfs4_lookupp_arg *args = data;
+ struct compound_hdr hdr = {
+ .minorversion = nfs4_xdr_minorversion(&args->seq_args),
+ };
+
+ encode_compound_hdr(xdr, req, &hdr);
+ encode_sequence(xdr, &args->seq_args, &hdr);
+ encode_putfh(xdr, args->fh, &hdr);
+ encode_lookupp(xdr, &hdr);
+ encode_getfh(xdr, &hdr);
+ encode_getfattr(xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+}
+
+/*
* Encode LOOKUP_ROOT request
*/
static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs4_lookup_root_arg *args)
+ const void *data)
{
+ const struct nfs4_lookup_root_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2166,8 +2185,9 @@ static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
* Encode REMOVE request
*/
static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs_removeargs *args)
+ const void *data)
{
+ const struct nfs_removeargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2183,8 +2203,9 @@ static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode RENAME request
*/
static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs_renameargs *args)
+ const void *data)
{
+ const struct nfs_renameargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2202,8 +2223,9 @@ static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode LINK request
*/
static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_link_arg *args)
+ const void *data)
{
+ const struct nfs4_link_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2223,8 +2245,9 @@ static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode CREATE request
*/
static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_create_arg *args)
+ const void *data)
{
+ const struct nfs4_create_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2242,8 +2265,10 @@ static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode SYMLINK request
*/
static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_create_arg *args)
+ const void *data)
{
+ const struct nfs4_create_arg *args = data;
+
nfs4_xdr_enc_create(req, xdr, args);
}
@@ -2251,8 +2276,9 @@ static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode GETATTR request
*/
static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_getattr_arg *args)
+ const void *data)
{
+ const struct nfs4_getattr_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2268,8 +2294,9 @@ static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode a CLOSE request
*/
static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_closeargs *args)
+ const void *data)
{
+ const struct nfs_closeargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2289,8 +2316,9 @@ static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode an OPEN request
*/
static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_openargs *args)
+ const void *data)
{
+ const struct nfs_openargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2311,8 +2339,9 @@ static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
*/
static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_open_confirmargs *args)
+ const void *data)
{
+ const struct nfs_open_confirmargs *args = data;
struct compound_hdr hdr = {
.nops = 0,
};
@@ -2328,8 +2357,9 @@ static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_openargs *args)
+ const void *data)
{
+ const struct nfs_openargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2349,8 +2379,9 @@ static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_closeargs *args)
+ const void *data)
{
+ const struct nfs_closeargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2368,8 +2399,9 @@ static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
* Encode a LOCK request
*/
static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_lock_args *args)
+ const void *data)
{
+ const struct nfs_lock_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2385,8 +2417,9 @@ static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode a LOCKT request
*/
static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_lockt_args *args)
+ const void *data)
{
+ const struct nfs_lockt_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2402,8 +2435,9 @@ static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode a LOCKU request
*/
static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_locku_args *args)
+ const void *data)
{
+ const struct nfs_locku_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2417,8 +2451,9 @@ static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_release_lockowner_args *args)
+ const void *data)
{
+ const struct nfs_release_lockowner_args *args = data;
struct compound_hdr hdr = {
.minorversion = 0,
};
@@ -2432,8 +2467,9 @@ static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
* Encode a READLINK request
*/
static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_readlink *args)
+ const void *data)
{
+ const struct nfs4_readlink *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2452,8 +2488,9 @@ static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode a READDIR request
*/
static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_readdir_arg *args)
+ const void *data)
{
+ const struct nfs4_readdir_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2475,8 +2512,9 @@ static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode a READ request
*/
static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_pgio_args *args)
+ const void *data)
{
+ const struct nfs_pgio_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2496,8 +2534,9 @@ static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode an SETATTR request
*/
static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_setattrargs *args)
+ const void *data)
{
+ const struct nfs_setattrargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2514,8 +2553,9 @@ static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode a GETACL request
*/
static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_getaclargs *args)
+ const void *data)
{
+ const struct nfs_getaclargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2524,7 +2564,7 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
- replen = hdr.replen + op_decode_hdr_maxsz + 1;
+ replen = hdr.replen + op_decode_hdr_maxsz;
encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
@@ -2537,8 +2577,9 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
* Encode a WRITE request
*/
static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_pgio_args *args)
+ const void *data)
{
+ const struct nfs_pgio_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2557,8 +2598,9 @@ static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
* a COMMIT request
*/
static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_commitargs *args)
+ const void *data)
{
+ const struct nfs_commitargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2574,8 +2616,9 @@ static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
* FSINFO request
*/
static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs4_fsinfo_arg *args)
+ const void *data)
{
+ const struct nfs4_fsinfo_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2591,8 +2634,9 @@ static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
* a PATHCONF request
*/
static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_pathconf_arg *args)
+ const void *data)
{
+ const struct nfs4_pathconf_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2609,8 +2653,9 @@ static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
* a STATFS request
*/
static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
- const struct nfs4_statfs_arg *args)
+ const void *data)
{
+ const struct nfs4_statfs_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2628,8 +2673,9 @@ static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
*/
static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_server_caps_arg *args)
+ const void *data)
{
+ const struct nfs4_server_caps_arg *args = data;
const u32 *bitmask = args->bitmask;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
@@ -2646,8 +2692,10 @@ static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
* a RENEW request
*/
static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_client *clp)
+ const void *data)
+
{
+ const struct nfs_client *clp = data;
struct compound_hdr hdr = {
.nops = 0,
};
@@ -2662,8 +2710,9 @@ static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
*/
static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_setclientid *sc)
+ const void *data)
{
+ const struct nfs4_setclientid *sc = data;
struct compound_hdr hdr = {
.nops = 0,
};
@@ -2678,8 +2727,9 @@ static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_setclientid_res *arg)
+ const void *data)
{
+ const struct nfs4_setclientid_res *arg = data;
struct compound_hdr hdr = {
.nops = 0,
};
@@ -2694,8 +2744,9 @@ static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
struct xdr_stream *xdr,
- const struct nfs4_delegreturnargs *args)
+ const void *data)
{
+ const struct nfs4_delegreturnargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2716,8 +2767,9 @@ static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_fs_locations_arg *args)
+ const void *data)
{
+ const struct nfs4_fs_locations_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2739,8 +2791,8 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
}
/* Set up reply kvec to capture returned fs_locations array. */
- xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
- 0, PAGE_SIZE);
+ xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
+ (struct page **)&args->page, 0, PAGE_SIZE);
encode_nops(&hdr);
}
@@ -2749,8 +2801,9 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_secinfo_arg *args)
+ const void *data)
{
+ const struct nfs4_secinfo_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2767,8 +2820,9 @@ static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_fsid_present_arg *args)
+ const void *data)
{
+ const struct nfs4_fsid_present_arg *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2788,8 +2842,9 @@ static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs41_bind_conn_to_session_args *args)
+ const void *data)
{
+ const struct nfs41_bind_conn_to_session_args *args = data;
struct compound_hdr hdr = {
.minorversion = args->client->cl_mvops->minor_version,
};
@@ -2804,8 +2859,9 @@ static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs41_exchange_id_args *args)
+ const void *data)
{
+ const struct nfs41_exchange_id_args *args = data;
struct compound_hdr hdr = {
.minorversion = args->client->cl_mvops->minor_version,
};
@@ -2820,8 +2876,9 @@ static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs41_create_session_args *args)
+ const void *data)
{
+ const struct nfs41_create_session_args *args = data;
struct compound_hdr hdr = {
.minorversion = args->client->cl_mvops->minor_version,
};
@@ -2836,8 +2893,9 @@ static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_session *session)
+ const void *data)
{
+ const struct nfs4_session *session = data;
struct compound_hdr hdr = {
.minorversion = session->clp->cl_mvops->minor_version,
};
@@ -2852,8 +2910,9 @@ static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs_client *clp)
+ const void *data)
{
+ const struct nfs_client *clp = data;
struct compound_hdr hdr = {
.minorversion = clp->cl_mvops->minor_version,
};
@@ -2867,8 +2926,9 @@ static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
* a SEQUENCE request
*/
static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs4_sequence_args *args)
+ const void *data)
{
+ const struct nfs4_sequence_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(args),
};
@@ -2883,8 +2943,9 @@ static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
*/
static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_get_lease_time_args *args)
+ const void *data)
{
+ const struct nfs4_get_lease_time_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
};
@@ -2902,8 +2963,9 @@ static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs41_reclaim_complete_args *args)
+ const void *data)
{
+ const struct nfs41_reclaim_complete_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args)
};
@@ -2919,8 +2981,9 @@ static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_getdeviceinfo_args *args)
+ const void *data)
{
+ const struct nfs4_getdeviceinfo_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2943,8 +3006,9 @@ static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_layoutget_args *args)
+ const void *data)
{
+ const struct nfs4_layoutget_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -2965,8 +3029,9 @@ static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_layoutcommit_args *args)
+ const void *priv)
{
+ const struct nfs4_layoutcommit_args *args = priv;
struct nfs4_layoutcommit_data *data =
container_of(args, struct nfs4_layoutcommit_data, args);
struct compound_hdr hdr = {
@@ -2986,8 +3051,9 @@ static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_layoutreturn_args *args)
+ const void *data)
{
+ const struct nfs4_layoutreturn_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -3002,10 +3068,11 @@ static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
/*
* Encode SECINFO_NO_NAME request
*/
-static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
+static void nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs41_secinfo_no_name_args *args)
+ const void *data)
{
+ const struct nfs41_secinfo_no_name_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -3015,7 +3082,6 @@ static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
encode_putrootfh(xdr, &hdr);
encode_secinfo_no_name(xdr, args, &hdr);
encode_nops(&hdr);
- return 0;
}
/*
@@ -3023,8 +3089,9 @@ static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs41_test_stateid_args *args)
+ const void *data)
{
+ const struct nfs41_test_stateid_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -3040,8 +3107,9 @@ static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
*/
static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs41_free_stateid_args *args)
+ const void *data)
{
+ const struct nfs41_free_stateid_args *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -3062,20 +3130,15 @@ static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
{
- __be32 *p;
-
- p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
- goto out_overflow;
- *len = be32_to_cpup(p);
- p = xdr_inline_decode(xdr, *len);
- if (unlikely(!p))
- goto out_overflow;
- *string = (char *)p;
+ ssize_t ret = xdr_stream_decode_opaque_inline(xdr, (void **)string,
+ NFS4_OPAQUE_LIMIT);
+ if (unlikely(ret < 0)) {
+ if (ret == -EBADMSG)
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
+ }
+ *len = ret;
return 0;
-out_overflow:
- print_overflow_msg(__func__, xdr);
- return -EIO;
}
static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
@@ -3142,7 +3205,7 @@ static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
}
/* Dummy routine */
-static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
+static int decode_ace(struct xdr_stream *xdr, void *ace)
{
__be32 *p;
unsigned int strlen;
@@ -3890,45 +3953,50 @@ out_overflow:
return -EIO;
}
+static ssize_t decode_nfs4_string(struct xdr_stream *xdr,
+ struct nfs4_string *name, gfp_t gfp_flags)
+{
+ ssize_t ret;
+
+ ret = xdr_stream_decode_string_dup(xdr, &name->data,
+ XDR_MAX_NETOBJ, gfp_flags);
+ name->len = 0;
+ if (ret > 0)
+ name->len = ret;
+ return ret;
+}
+
static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
const struct nfs_server *server, kuid_t *uid,
struct nfs4_string *owner_name)
{
- uint32_t len;
- __be32 *p;
- int ret = 0;
+ ssize_t len;
+ char *p;
*uid = make_kuid(&init_user_ns, -2);
if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
return -EIO;
- if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
- p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
- goto out_overflow;
- len = be32_to_cpup(p);
- p = xdr_inline_decode(xdr, len);
- if (unlikely(!p))
- goto out_overflow;
- if (owner_name != NULL) {
- owner_name->data = kmemdup(p, len, GFP_NOWAIT);
- if (owner_name->data != NULL) {
- owner_name->len = len;
- ret = NFS_ATTR_FATTR_OWNER_NAME;
- }
- } else if (len < XDR_MAX_NETOBJ) {
- if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
- ret = NFS_ATTR_FATTR_OWNER;
- else
- dprintk("%s: nfs_map_name_to_uid failed!\n",
- __func__);
- } else
- dprintk("%s: name too long (%u)!\n",
- __func__, len);
- bitmap[1] &= ~FATTR4_WORD1_OWNER;
+ if (!(bitmap[1] & FATTR4_WORD1_OWNER))
+ return 0;
+ bitmap[1] &= ~FATTR4_WORD1_OWNER;
+
+ if (owner_name != NULL) {
+ len = decode_nfs4_string(xdr, owner_name, GFP_NOWAIT);
+ if (len <= 0)
+ goto out;
+ dprintk("%s: name=%s\n", __func__, owner_name->data);
+ return NFS_ATTR_FATTR_OWNER_NAME;
+ } else {
+ len = xdr_stream_decode_opaque_inline(xdr, (void **)&p,
+ XDR_MAX_NETOBJ);
+ if (len <= 0 || nfs_map_name_to_uid(server, p, len, uid) != 0)
+ goto out;
+ dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid));
+ return NFS_ATTR_FATTR_OWNER;
}
- dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid));
- return ret;
-out_overflow:
+out:
+ if (len != -EBADMSG)
+ return 0;
print_overflow_msg(__func__, xdr);
return -EIO;
}
@@ -3937,41 +4005,33 @@ static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
const struct nfs_server *server, kgid_t *gid,
struct nfs4_string *group_name)
{
- uint32_t len;
- __be32 *p;
- int ret = 0;
+ ssize_t len;
+ char *p;
*gid = make_kgid(&init_user_ns, -2);
if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
return -EIO;
- if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
- p = xdr_inline_decode(xdr, 4);
- if (unlikely(!p))
- goto out_overflow;
- len = be32_to_cpup(p);
- p = xdr_inline_decode(xdr, len);
- if (unlikely(!p))
- goto out_overflow;
- if (group_name != NULL) {
- group_name->data = kmemdup(p, len, GFP_NOWAIT);
- if (group_name->data != NULL) {
- group_name->len = len;
- ret = NFS_ATTR_FATTR_GROUP_NAME;
- }
- } else if (len < XDR_MAX_NETOBJ) {
- if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
- ret = NFS_ATTR_FATTR_GROUP;
- else
- dprintk("%s: nfs_map_group_to_gid failed!\n",
- __func__);
- } else
- dprintk("%s: name too long (%u)!\n",
- __func__, len);
- bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
+ if (!(bitmap[1] & FATTR4_WORD1_OWNER_GROUP))
+ return 0;
+ bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP;
+
+ if (group_name != NULL) {
+ len = decode_nfs4_string(xdr, group_name, GFP_NOWAIT);
+ if (len <= 0)
+ goto out;
+ dprintk("%s: name=%s\n", __func__, group_name->data);
+ return NFS_ATTR_FATTR_GROUP_NAME;
+ } else {
+ len = xdr_stream_decode_opaque_inline(xdr, (void **)&p,
+ XDR_MAX_NETOBJ);
+ if (len <= 0 || nfs_map_group_to_gid(server, p, len, gid) != 0)
+ goto out;
+ dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid));
+ return NFS_ATTR_FATTR_GROUP;
}
- dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid));
- return ret;
-out_overflow:
+out:
+ if (len != -EBADMSG)
+ return 0;
print_overflow_msg(__func__, xdr);
return -EIO;
}
@@ -4294,15 +4354,12 @@ out_overflow:
static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
{
- __be32 *p;
-
- p = xdr_inline_decode(xdr, len);
- if (likely(p)) {
- memcpy(buf, p, len);
- return 0;
+ ssize_t ret = xdr_stream_decode_opaque_fixed(xdr, buf, len);
+ if (unlikely(ret < 0)) {
+ print_overflow_msg(__func__, xdr);
+ return -EIO;
}
- print_overflow_msg(__func__, xdr);
- return -EIO;
+ return 0;
}
static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
@@ -5040,6 +5097,11 @@ static int decode_lookup(struct xdr_stream *xdr)
return decode_op_hdr(xdr, OP_LOOKUP);
}
+static int decode_lookupp(struct xdr_stream *xdr)
+{
+ return decode_op_hdr(xdr, OP_LOOKUPP);
+}
+
/* This is too sick! */
static int decode_space_limit(struct xdr_stream *xdr,
unsigned long *pagemod_limit)
@@ -5093,7 +5155,7 @@ static int decode_rw_delegation(struct xdr_stream *xdr,
if (decode_space_limit(xdr, &res->pagemod_limit) < 0)
return -EIO;
}
- return decode_ace(xdr, NULL, res->server->nfs_client);
+ return decode_ace(xdr, NULL);
out_overflow:
print_overflow_msg(__func__, xdr);
return -EIO;
@@ -5600,6 +5662,8 @@ static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
unsigned int i;
p = xdr_inline_decode(xdr, 4);
+ if (!p)
+ return -EIO;
bitmap_words = be32_to_cpup(p++);
if (bitmap_words > NFS4_OP_MAP_NUM_WORDS)
return -EIO;
@@ -5660,8 +5724,6 @@ static int decode_exchange_id(struct xdr_stream *xdr,
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
if (unlikely(status))
return status;
- if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
- return -EIO;
memcpy(res->server_owner->major_id, dummy_str, dummy);
res->server_owner->major_id_sz = dummy;
@@ -5669,8 +5731,6 @@ static int decode_exchange_id(struct xdr_stream *xdr,
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
if (unlikely(status))
return status;
- if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
- return -EIO;
memcpy(res->server_scope->server_scope, dummy_str, dummy);
res->server_scope->server_scope_sz = dummy;
@@ -5685,16 +5745,12 @@ static int decode_exchange_id(struct xdr_stream *xdr,
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
if (unlikely(status))
return status;
- if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
- return -EIO;
memcpy(res->impl_id->domain, dummy_str, dummy);
/* nii_name */
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
if (unlikely(status))
return status;
- if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
- return -EIO;
memcpy(res->impl_id->name, dummy_str, dummy);
/* nii_date */
@@ -6142,8 +6198,9 @@ int decode_layoutreturn(struct xdr_stream *xdr,
*/
static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs_closeres *res)
+ void *data)
{
+ struct nfs_closeres *res = data;
struct compound_hdr hdr;
int status;
@@ -6171,8 +6228,9 @@ out:
* Decode ACCESS response
*/
static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs4_accessres *res)
+ void *data)
{
+ struct nfs4_accessres *res = data;
struct compound_hdr hdr;
int status;
@@ -6197,8 +6255,9 @@ out:
* Decode LOOKUP response
*/
static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs4_lookup_res *res)
+ void *data)
{
+ struct nfs4_lookup_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6223,12 +6282,43 @@ out:
}
/*
+ * Decode LOOKUPP response
+ */
+static int nfs4_xdr_dec_lookupp(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+ void *data)
+{
+ struct nfs4_lookupp_res *res = data;
+ struct compound_hdr hdr;
+ int status;
+
+ status = decode_compound_hdr(xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_sequence(xdr, &res->seq_res, rqstp);
+ if (status)
+ goto out;
+ status = decode_putfh(xdr);
+ if (status)
+ goto out;
+ status = decode_lookupp(xdr);
+ if (status)
+ goto out;
+ status = decode_getfh(xdr, res->fh);
+ if (status)
+ goto out;
+ status = decode_getfattr_label(xdr, res->fattr, res->label, res->server);
+out:
+ return status;
+}
+
+/*
* Decode LOOKUP_ROOT response
*/
static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_lookup_res *res)
+ void *data)
{
+ struct nfs4_lookup_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6253,8 +6343,9 @@ out:
* Decode REMOVE response
*/
static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_removeres *res)
+ void *data)
{
+ struct nfs_removeres *res = data;
struct compound_hdr hdr;
int status;
@@ -6276,8 +6367,9 @@ out:
* Decode RENAME response
*/
static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_renameres *res)
+ void *data)
{
+ struct nfs_renameres *res = data;
struct compound_hdr hdr;
int status;
@@ -6305,8 +6397,9 @@ out:
* Decode LINK response
*/
static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs4_link_res *res)
+ void *data)
{
+ struct nfs4_link_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6344,8 +6437,9 @@ out:
* Decode CREATE response
*/
static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs4_create_res *res)
+ void *data)
{
+ struct nfs4_create_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6373,7 +6467,7 @@ out:
* Decode SYMLINK response
*/
static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs4_create_res *res)
+ void *res)
{
return nfs4_xdr_dec_create(rqstp, xdr, res);
}
@@ -6382,8 +6476,9 @@ static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
* Decode GETATTR response
*/
static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs4_getattr_res *res)
+ void *data)
{
+ struct nfs4_getattr_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6405,8 +6500,9 @@ out:
* Encode an SETACL request
*/
static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs_setaclargs *args)
+ const void *data)
{
+ const struct nfs_setaclargs *args = data;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
@@ -6423,8 +6519,9 @@ static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
*/
static int
nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_setaclres *res)
+ void *data)
{
+ struct nfs_setaclres *res = data;
struct compound_hdr hdr;
int status;
@@ -6447,8 +6544,9 @@ out:
*/
static int
nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_getaclres *res)
+ void *data)
{
+ struct nfs_getaclres *res = data;
struct compound_hdr hdr;
int status;
@@ -6475,8 +6573,9 @@ out:
* Decode CLOSE response
*/
static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_closeres *res)
+ void *data)
{
+ struct nfs_closeres *res = data;
struct compound_hdr hdr;
int status;
@@ -6509,8 +6608,9 @@ out:
* Decode OPEN response
*/
static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_openres *res)
+ void *data)
{
+ struct nfs_openres *res = data;
struct compound_hdr hdr;
int status;
@@ -6541,8 +6641,9 @@ out:
*/
static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs_open_confirmres *res)
+ void *data)
{
+ struct nfs_open_confirmres *res = data;
struct compound_hdr hdr;
int status;
@@ -6562,8 +6663,9 @@ out:
*/
static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs_openres *res)
+ void *data)
{
+ struct nfs_openres *res = data;
struct compound_hdr hdr;
int status;
@@ -6591,8 +6693,9 @@ out:
*/
static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs_setattrres *res)
+ void *data)
{
+ struct nfs_setattrres *res = data;
struct compound_hdr hdr;
int status;
@@ -6617,8 +6720,9 @@ out:
* Decode LOCK response
*/
static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_lock_res *res)
+ void *data)
{
+ struct nfs_lock_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6640,8 +6744,9 @@ out:
* Decode LOCKT response
*/
static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_lockt_res *res)
+ void *data)
{
+ struct nfs_lockt_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6663,8 +6768,9 @@ out:
* Decode LOCKU response
*/
static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_locku_res *res)
+ void *data)
{
+ struct nfs_locku_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6699,8 +6805,9 @@ static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
*/
static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_readlink_res *res)
+ void *data)
{
+ struct nfs4_readlink_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6722,8 +6829,9 @@ out:
* Decode READDIR response
*/
static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs4_readdir_res *res)
+ void *data)
{
+ struct nfs4_readdir_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6745,8 +6853,9 @@ out:
* Decode Read response
*/
static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_pgio_res *res)
+ void *data)
{
+ struct nfs_pgio_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6771,8 +6880,9 @@ out:
* Decode WRITE response
*/
static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_pgio_res *res)
+ void *data)
{
+ struct nfs_pgio_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6801,8 +6911,9 @@ out:
* Decode COMMIT response
*/
static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
- struct nfs_commitres *res)
+ void *data)
{
+ struct nfs_commitres *res = data;
struct compound_hdr hdr;
int status;
@@ -6825,8 +6936,9 @@ out:
* Decode FSINFO response
*/
static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs4_fsinfo_res *res)
+ void *data)
{
+ struct nfs4_fsinfo_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6844,8 +6956,9 @@ static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
* Decode PATHCONF response
*/
static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs4_pathconf_res *res)
+ void *data)
{
+ struct nfs4_pathconf_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6863,8 +6976,9 @@ static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
* Decode STATFS response
*/
static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
- struct nfs4_statfs_res *res)
+ void *data)
{
+ struct nfs4_statfs_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6883,8 +6997,9 @@ static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
*/
static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_server_caps_res *res)
+ void *data)
{
+ struct nfs4_server_caps_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6922,8 +7037,9 @@ static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
*/
static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_setclientid_res *res)
+ void *data)
{
+ struct nfs4_setclientid_res *res = data;
struct compound_hdr hdr;
int status;
@@ -6937,7 +7053,8 @@ static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
* Decode SETCLIENTID_CONFIRM response
*/
static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
- struct xdr_stream *xdr)
+ struct xdr_stream *xdr,
+ void *data)
{
struct compound_hdr hdr;
int status;
@@ -6953,8 +7070,9 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
*/
static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_delegreturnres *res)
+ void *data)
{
+ struct nfs4_delegreturnres *res = data;
struct compound_hdr hdr;
int status;
@@ -6988,8 +7106,9 @@ out:
*/
static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
struct xdr_stream *xdr,
- struct nfs4_fs_locations_res *res)
+ void *data)
{
+ struct nfs4_fs_locations_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7031,8 +7150,9 @@ out:
*/
static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_secinfo_res *res)
+ void *data)
{
+ struct nfs4_secinfo_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7055,8 +7175,9 @@ out:
*/
static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_fsid_present_res *res)
+ void *data)
{
+ struct nfs4_fsid_present_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7116,7 +7237,7 @@ static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
*/
static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs41_create_session_res *res)
+ void *res)
{
struct compound_hdr hdr;
int status;
@@ -7164,7 +7285,7 @@ static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
*/
static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_sequence_res *res)
+ void *res)
{
struct compound_hdr hdr;
int status;
@@ -7180,8 +7301,9 @@ static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
*/
static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_get_lease_time_res *res)
+ void *data)
{
+ struct nfs4_get_lease_time_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7200,8 +7322,9 @@ static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
*/
static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs41_reclaim_complete_res *res)
+ void *data)
{
+ struct nfs41_reclaim_complete_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7218,8 +7341,9 @@ static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
*/
static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_getdeviceinfo_res *res)
+ void *data)
{
+ struct nfs4_getdeviceinfo_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7239,8 +7363,9 @@ out:
*/
static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_layoutget_res *res)
+ void *data)
{
+ struct nfs4_layoutget_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7263,8 +7388,9 @@ out:
*/
static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_layoutreturn_res *res)
+ void *data)
{
+ struct nfs4_layoutreturn_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7287,8 +7413,9 @@ out:
*/
static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_layoutcommit_res *res)
+ void *data)
{
+ struct nfs4_layoutcommit_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7314,8 +7441,9 @@ out:
*/
static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs4_secinfo_res *res)
+ void *data)
{
+ struct nfs4_secinfo_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7338,8 +7466,9 @@ out:
*/
static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs41_test_stateid_res *res)
+ void *data)
{
+ struct nfs41_test_stateid_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7359,8 +7488,9 @@ out:
*/
static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
- struct nfs41_free_stateid_res *res)
+ void *data)
{
+ struct nfs41_free_stateid_res *res = data;
struct compound_hdr hdr;
int status;
@@ -7391,7 +7521,7 @@ out:
* on a directory already in our cache.
*/
int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
- int plus)
+ bool plus)
{
unsigned int savep;
uint32_t bitmap[3] = {0};
@@ -7525,8 +7655,8 @@ nfs4_stat_to_errno(int stat)
#define PROC(proc, argtype, restype) \
[NFSPROC4_CLNT_##proc] = { \
.p_proc = NFSPROC4_COMPOUND, \
- .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \
- .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \
+ .p_encode = nfs4_xdr_##argtype, \
+ .p_decode = nfs4_xdr_##restype, \
.p_arglen = NFS4_##argtype##_sz, \
.p_replen = NFS4_##restype##_sz, \
.p_statidx = NFSPROC4_CLNT_##proc, \
@@ -7538,7 +7668,7 @@ nfs4_stat_to_errno(int stat)
.p_name = #proc, \
}
-struct rpc_procinfo nfs4_procedures[] = {
+const struct rpc_procinfo nfs4_procedures[] = {
PROC(READ, enc_read, dec_read),
PROC(WRITE, enc_write, dec_write),
PROC(COMMIT, enc_commit, dec_commit),
@@ -7558,6 +7688,7 @@ struct rpc_procinfo nfs4_procedures[] = {
PROC(ACCESS, enc_access, dec_access),
PROC(GETATTR, enc_getattr, dec_getattr),
PROC(LOOKUP, enc_lookup, dec_lookup),
+ PROC(LOOKUPP, enc_lookupp, dec_lookupp),
PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root),
PROC(REMOVE, enc_remove, dec_remove),
PROC(RENAME, enc_rename, dec_rename),
@@ -7605,10 +7736,12 @@ struct rpc_procinfo nfs4_procedures[] = {
#endif /* CONFIG_NFS_V4_2 */
};
+static unsigned int nfs_version4_counts[ARRAY_SIZE(nfs4_procedures)];
const struct rpc_version nfs_version4 = {
.number = 4,
.nrprocs = ARRAY_SIZE(nfs4_procedures),
- .procs = nfs4_procedures
+ .procs = nfs4_procedures,
+ .counts = nfs_version4_counts,
};
/*
diff --git a/fs/nfs/objlayout/Kbuild b/fs/nfs/objlayout/Kbuild
deleted file mode 100644
index ed30ea072bb8..000000000000
--- a/fs/nfs/objlayout/Kbuild
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the pNFS Objects Layout Driver kernel module
-#
-objlayoutdriver-y := objio_osd.o pnfs_osd_xdr_cli.o objlayout.o
-obj-$(CONFIG_PNFS_OBJLAYOUT) += objlayoutdriver.o
diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
deleted file mode 100644
index 049c1b1f2932..000000000000
--- a/fs/nfs/objlayout/objio_osd.c
+++ /dev/null
@@ -1,675 +0,0 @@
-/*
- * pNFS Objects layout implementation over open-osd initiator library
- *
- * Copyright (C) 2009 Panasas Inc. [year of first publication]
- * All rights reserved.
- *
- * Benny Halevy <[email protected]>
- * Boaz Harrosh <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * See the file COPYING included with this distribution for more details.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Panasas company nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <linux/module.h>
-#include <scsi/osd_ore.h>
-
-#include "objlayout.h"
-#include "../internal.h"
-
-#define NFSDBG_FACILITY NFSDBG_PNFS_LD
-
-struct objio_dev_ent {
- struct nfs4_deviceid_node id_node;
- struct ore_dev od;
-};
-
-static void
-objio_free_deviceid_node(struct nfs4_deviceid_node *d)
-{
- struct objio_dev_ent *de = container_of(d, struct objio_dev_ent, id_node);
-
- dprintk("%s: free od=%p\n", __func__, de->od.od);
- osduld_put_device(de->od.od);
- kfree_rcu(d, rcu);
-}
-
-struct objio_segment {
- struct pnfs_layout_segment lseg;
-
- struct ore_layout layout;
- struct ore_components oc;
-};
-
-static inline struct objio_segment *
-OBJIO_LSEG(struct pnfs_layout_segment *lseg)
-{
- return container_of(lseg, struct objio_segment, lseg);
-}
-
-struct objio_state {
- /* Generic layer */
- struct objlayout_io_res oir;
-
- bool sync;
- /*FIXME: Support for extra_bytes at ore_get_rw_state() */
- struct ore_io_state *ios;
-};
-
-/* Send and wait for a get_device_info of devices in the layout,
- then look them up with the osd_initiator library */
-struct nfs4_deviceid_node *
-objio_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
- gfp_t gfp_flags)
-{
- struct pnfs_osd_deviceaddr *deviceaddr;
- struct objio_dev_ent *ode = NULL;
- struct osd_dev *od;
- struct osd_dev_info odi;
- bool retry_flag = true;
- __be32 *p;
- int err;
-
- deviceaddr = kzalloc(sizeof(*deviceaddr), gfp_flags);
- if (!deviceaddr)
- return NULL;
-
- p = page_address(pdev->pages[0]);
- pnfs_osd_xdr_decode_deviceaddr(deviceaddr, p);
-
- odi.systemid_len = deviceaddr->oda_systemid.len;
- if (odi.systemid_len > sizeof(odi.systemid)) {
- dprintk("%s: odi.systemid_len > sizeof(systemid=%zd)\n",
- __func__, sizeof(odi.systemid));
- err = -EINVAL;
- goto out;
- } else if (odi.systemid_len)
- memcpy(odi.systemid, deviceaddr->oda_systemid.data,
- odi.systemid_len);
- odi.osdname_len = deviceaddr->oda_osdname.len;
- odi.osdname = (u8 *)deviceaddr->oda_osdname.data;
-
- if (!odi.osdname_len && !odi.systemid_len) {
- dprintk("%s: !odi.osdname_len && !odi.systemid_len\n",
- __func__);
- err = -ENODEV;
- goto out;
- }
-
-retry_lookup:
- od = osduld_info_lookup(&odi);
- if (IS_ERR(od)) {
- err = PTR_ERR(od);
- dprintk("%s: osduld_info_lookup => %d\n", __func__, err);
- if (err == -ENODEV && retry_flag) {
- err = objlayout_autologin(deviceaddr);
- if (likely(!err)) {
- retry_flag = false;
- goto retry_lookup;
- }
- }
- goto out;
- }
-
- dprintk("Adding new dev_id(%llx:%llx)\n",
- _DEVID_LO(&pdev->dev_id), _DEVID_HI(&pdev->dev_id));
-
- ode = kzalloc(sizeof(*ode), gfp_flags);
- if (!ode) {
- dprintk("%s: -ENOMEM od=%p\n", __func__, od);
- goto out;
- }
-
- nfs4_init_deviceid_node(&ode->id_node, server, &pdev->dev_id);
- kfree(deviceaddr);
-
- ode->od.od = od;
- return &ode->id_node;
-
-out:
- kfree(deviceaddr);
- return NULL;
-}
-
-static void copy_single_comp(struct ore_components *oc, unsigned c,
- struct pnfs_osd_object_cred *src_comp)
-{
- struct ore_comp *ocomp = &oc->comps[c];
-
- WARN_ON(src_comp->oc_cap_key.cred_len > 0); /* libosd is NO_SEC only */
- WARN_ON(src_comp->oc_cap.cred_len > sizeof(ocomp->cred));
-
- ocomp->obj.partition = src_comp->oc_object_id.oid_partition_id;
- ocomp->obj.id = src_comp->oc_object_id.oid_object_id;
-
- memcpy(ocomp->cred, src_comp->oc_cap.cred, sizeof(ocomp->cred));
-}
-
-static int __alloc_objio_seg(unsigned numdevs, gfp_t gfp_flags,
- struct objio_segment **pseg)
-{
-/* This is the in memory structure of the objio_segment
- *
- * struct __alloc_objio_segment {
- * struct objio_segment olseg;
- * struct ore_dev *ods[numdevs];
- * struct ore_comp comps[numdevs];
- * } *aolseg;
- * NOTE: The code as above compiles and runs perfectly. It is elegant,
- * type safe and compact. At some Past time Linus has decided he does not
- * like variable length arrays, For the sake of this principal we uglify
- * the code as below.
- */
- struct objio_segment *lseg;
- size_t lseg_size = sizeof(*lseg) +
- numdevs * sizeof(lseg->oc.ods[0]) +
- numdevs * sizeof(*lseg->oc.comps);
-
- lseg = kzalloc(lseg_size, gfp_flags);
- if (unlikely(!lseg)) {
- dprintk("%s: Failed allocation numdevs=%d size=%zd\n", __func__,
- numdevs, lseg_size);
- return -ENOMEM;
- }
-
- lseg->oc.numdevs = numdevs;
- lseg->oc.single_comp = EC_MULTPLE_COMPS;
- lseg->oc.ods = (void *)(lseg + 1);
- lseg->oc.comps = (void *)(lseg->oc.ods + numdevs);
-
- *pseg = lseg;
- return 0;
-}
-
-int objio_alloc_lseg(struct pnfs_layout_segment **outp,
- struct pnfs_layout_hdr *pnfslay,
- struct pnfs_layout_range *range,
- struct xdr_stream *xdr,
- gfp_t gfp_flags)
-{
- struct nfs_server *server = NFS_SERVER(pnfslay->plh_inode);
- struct objio_segment *objio_seg;
- struct pnfs_osd_xdr_decode_layout_iter iter;
- struct pnfs_osd_layout layout;
- struct pnfs_osd_object_cred src_comp;
- unsigned cur_comp;
- int err;
-
- err = pnfs_osd_xdr_decode_layout_map(&layout, &iter, xdr);
- if (unlikely(err))
- return err;
-
- err = __alloc_objio_seg(layout.olo_num_comps, gfp_flags, &objio_seg);
- if (unlikely(err))
- return err;
-
- objio_seg->layout.stripe_unit = layout.olo_map.odm_stripe_unit;
- objio_seg->layout.group_width = layout.olo_map.odm_group_width;
- objio_seg->layout.group_depth = layout.olo_map.odm_group_depth;
- objio_seg->layout.mirrors_p1 = layout.olo_map.odm_mirror_cnt + 1;
- objio_seg->layout.raid_algorithm = layout.olo_map.odm_raid_algorithm;
-
- err = ore_verify_layout(layout.olo_map.odm_num_comps,
- &objio_seg->layout);
- if (unlikely(err))
- goto err;
-
- objio_seg->oc.first_dev = layout.olo_comps_index;
- cur_comp = 0;
- while (pnfs_osd_xdr_decode_layout_comp(&src_comp, &iter, xdr, &err)) {
- struct nfs4_deviceid_node *d;
- struct objio_dev_ent *ode;
-
- copy_single_comp(&objio_seg->oc, cur_comp, &src_comp);
-
- d = nfs4_find_get_deviceid(server,
- &src_comp.oc_object_id.oid_device_id,
- pnfslay->plh_lc_cred, gfp_flags);
- if (!d) {
- err = -ENXIO;
- goto err;
- }
-
- ode = container_of(d, struct objio_dev_ent, id_node);
- objio_seg->oc.ods[cur_comp++] = &ode->od;
- }
- /* pnfs_osd_xdr_decode_layout_comp returns false on error */
- if (unlikely(err))
- goto err;
-
- *outp = &objio_seg->lseg;
- return 0;
-
-err:
- kfree(objio_seg);
- dprintk("%s: Error: return %d\n", __func__, err);
- *outp = NULL;
- return err;
-}
-
-void objio_free_lseg(struct pnfs_layout_segment *lseg)
-{
- int i;
- struct objio_segment *objio_seg = OBJIO_LSEG(lseg);
-
- for (i = 0; i < objio_seg->oc.numdevs; i++) {
- struct ore_dev *od = objio_seg->oc.ods[i];
- struct objio_dev_ent *ode;
-
- if (!od)
- break;
- ode = container_of(od, typeof(*ode), od);
- nfs4_put_deviceid_node(&ode->id_node);
- }
- kfree(objio_seg);
-}
-
-static int
-objio_alloc_io_state(struct pnfs_layout_hdr *pnfs_layout_type, bool is_reading,
- struct pnfs_layout_segment *lseg, struct page **pages, unsigned pgbase,
- loff_t offset, size_t count, void *rpcdata, gfp_t gfp_flags,
- struct objio_state **outp)
-{
- struct objio_segment *objio_seg = OBJIO_LSEG(lseg);
- struct ore_io_state *ios;
- int ret;
- struct __alloc_objio_state {
- struct objio_state objios;
- struct pnfs_osd_ioerr ioerrs[objio_seg->oc.numdevs];
- } *aos;
-
- aos = kzalloc(sizeof(*aos), gfp_flags);
- if (unlikely(!aos))
- return -ENOMEM;
-
- objlayout_init_ioerrs(&aos->objios.oir, objio_seg->oc.numdevs,
- aos->ioerrs, rpcdata, pnfs_layout_type);
-
- ret = ore_get_rw_state(&objio_seg->layout, &objio_seg->oc, is_reading,
- offset, count, &ios);
- if (unlikely(ret)) {
- kfree(aos);
- return ret;
- }
-
- ios->pages = pages;
- ios->pgbase = pgbase;
- ios->private = aos;
- BUG_ON(ios->nr_pages > (pgbase + count + PAGE_SIZE - 1) >> PAGE_SHIFT);
-
- aos->objios.sync = 0;
- aos->objios.ios = ios;
- *outp = &aos->objios;
- return 0;
-}
-
-void objio_free_result(struct objlayout_io_res *oir)
-{
- struct objio_state *objios = container_of(oir, struct objio_state, oir);
-
- ore_put_io_state(objios->ios);
- kfree(objios);
-}
-
-static enum pnfs_osd_errno osd_pri_2_pnfs_err(enum osd_err_priority oep)
-{
- switch (oep) {
- case OSD_ERR_PRI_NO_ERROR:
- return (enum pnfs_osd_errno)0;
-
- case OSD_ERR_PRI_CLEAR_PAGES:
- BUG_ON(1);
- return 0;
-
- case OSD_ERR_PRI_RESOURCE:
- return PNFS_OSD_ERR_RESOURCE;
- case OSD_ERR_PRI_BAD_CRED:
- return PNFS_OSD_ERR_BAD_CRED;
- case OSD_ERR_PRI_NO_ACCESS:
- return PNFS_OSD_ERR_NO_ACCESS;
- case OSD_ERR_PRI_UNREACHABLE:
- return PNFS_OSD_ERR_UNREACHABLE;
- case OSD_ERR_PRI_NOT_FOUND:
- return PNFS_OSD_ERR_NOT_FOUND;
- case OSD_ERR_PRI_NO_SPACE:
- return PNFS_OSD_ERR_NO_SPACE;
- default:
- WARN_ON(1);
- /* fallthrough */
- case OSD_ERR_PRI_EIO:
- return PNFS_OSD_ERR_EIO;
- }
-}
-
-static void __on_dev_error(struct ore_io_state *ios,
- struct ore_dev *od, unsigned dev_index, enum osd_err_priority oep,
- u64 dev_offset, u64 dev_len)
-{
- struct objio_state *objios = ios->private;
- struct pnfs_osd_objid pooid;
- struct objio_dev_ent *ode = container_of(od, typeof(*ode), od);
- /* FIXME: what to do with more-then-one-group layouts. We need to
- * translate from ore_io_state index to oc->comps index
- */
- unsigned comp = dev_index;
-
- pooid.oid_device_id = ode->id_node.deviceid;
- pooid.oid_partition_id = ios->oc->comps[comp].obj.partition;
- pooid.oid_object_id = ios->oc->comps[comp].obj.id;
-
- objlayout_io_set_result(&objios->oir, comp,
- &pooid, osd_pri_2_pnfs_err(oep),
- dev_offset, dev_len, !ios->reading);
-}
-
-/*
- * read
- */
-static void _read_done(struct ore_io_state *ios, void *private)
-{
- struct objio_state *objios = private;
- ssize_t status;
- int ret = ore_check_io(ios, &__on_dev_error);
-
- /* FIXME: _io_free(ios) can we dealocate the libosd resources; */
-
- if (likely(!ret))
- status = ios->length;
- else
- status = ret;
-
- objlayout_read_done(&objios->oir, status, objios->sync);
-}
-
-int objio_read_pagelist(struct nfs_pgio_header *hdr)
-{
- struct objio_state *objios;
- int ret;
-
- ret = objio_alloc_io_state(NFS_I(hdr->inode)->layout, true,
- hdr->lseg, hdr->args.pages, hdr->args.pgbase,
- hdr->args.offset, hdr->args.count, hdr,
- GFP_KERNEL, &objios);
- if (unlikely(ret))
- return ret;
-
- objios->ios->done = _read_done;
- dprintk("%s: offset=0x%llx length=0x%x\n", __func__,
- hdr->args.offset, hdr->args.count);
- ret = ore_read(objios->ios);
- if (unlikely(ret))
- objio_free_result(&objios->oir);
- return ret;
-}
-
-/*
- * write
- */
-static void _write_done(struct ore_io_state *ios, void *private)
-{
- struct objio_state *objios = private;
- ssize_t status;
- int ret = ore_check_io(ios, &__on_dev_error);
-
- /* FIXME: _io_free(ios) can we dealocate the libosd resources; */
-
- if (likely(!ret)) {
- /* FIXME: should be based on the OSD's persistence model
- * See OSD2r05 Section 4.13 Data persistence model */
- objios->oir.committed = NFS_FILE_SYNC;
- status = ios->length;
- } else {
- status = ret;
- }
-
- objlayout_write_done(&objios->oir, status, objios->sync);
-}
-
-static struct page *__r4w_get_page(void *priv, u64 offset, bool *uptodate)
-{
- struct objio_state *objios = priv;
- struct nfs_pgio_header *hdr = objios->oir.rpcdata;
- struct address_space *mapping = hdr->inode->i_mapping;
- pgoff_t index = offset / PAGE_SIZE;
- struct page *page;
- loff_t i_size = i_size_read(hdr->inode);
-
- if (offset >= i_size) {
- *uptodate = true;
- dprintk("%s: g_zero_page index=0x%lx\n", __func__, index);
- return ZERO_PAGE(0);
- }
-
- page = find_get_page(mapping, index);
- if (!page) {
- page = find_or_create_page(mapping, index, GFP_NOFS);
- if (unlikely(!page)) {
- dprintk("%s: grab_cache_page Failed index=0x%lx\n",
- __func__, index);
- return NULL;
- }
- unlock_page(page);
- }
- *uptodate = PageUptodate(page);
- dprintk("%s: index=0x%lx uptodate=%d\n", __func__, index, *uptodate);
- return page;
-}
-
-static void __r4w_put_page(void *priv, struct page *page)
-{
- dprintk("%s: index=0x%lx\n", __func__,
- (page == ZERO_PAGE(0)) ? -1UL : page->index);
- if (ZERO_PAGE(0) != page)
- put_page(page);
- return;
-}
-
-static const struct _ore_r4w_op _r4w_op = {
- .get_page = &__r4w_get_page,
- .put_page = &__r4w_put_page,
-};
-
-int objio_write_pagelist(struct nfs_pgio_header *hdr, int how)
-{
- struct objio_state *objios;
- int ret;
-
- ret = objio_alloc_io_state(NFS_I(hdr->inode)->layout, false,
- hdr->lseg, hdr->args.pages, hdr->args.pgbase,
- hdr->args.offset, hdr->args.count, hdr, GFP_NOFS,
- &objios);
- if (unlikely(ret))
- return ret;
-
- objios->sync = 0 != (how & FLUSH_SYNC);
- objios->ios->r4w = &_r4w_op;
-
- if (!objios->sync)
- objios->ios->done = _write_done;
-
- dprintk("%s: offset=0x%llx length=0x%x\n", __func__,
- hdr->args.offset, hdr->args.count);
- ret = ore_write(objios->ios);
- if (unlikely(ret)) {
- objio_free_result(&objios->oir);
- return ret;
- }
-
- if (objios->sync)
- _write_done(objios->ios, objios);
-
- return 0;
-}
-
-/*
- * Return 0 if @req cannot be coalesced into @pgio, otherwise return the number
- * of bytes (maximum @req->wb_bytes) that can be coalesced.
- */
-static size_t objio_pg_test(struct nfs_pageio_descriptor *pgio,
- struct nfs_page *prev, struct nfs_page *req)
-{
- struct nfs_pgio_mirror *mirror = nfs_pgio_current_mirror(pgio);
- unsigned int size;
-
- size = pnfs_generic_pg_test(pgio, prev, req);
-
- if (!size || mirror->pg_count + req->wb_bytes >
- (unsigned long)pgio->pg_layout_private)
- return 0;
-
- return min(size, req->wb_bytes);
-}
-
-static void objio_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
-{
- pnfs_generic_pg_init_read(pgio, req);
- if (unlikely(pgio->pg_lseg == NULL))
- return; /* Not pNFS */
-
- pgio->pg_layout_private = (void *)
- OBJIO_LSEG(pgio->pg_lseg)->layout.max_io_length;
-}
-
-static bool aligned_on_raid_stripe(u64 offset, struct ore_layout *layout,
- unsigned long *stripe_end)
-{
- u32 stripe_off;
- unsigned stripe_size;
-
- if (layout->raid_algorithm == PNFS_OSD_RAID_0)
- return true;
-
- stripe_size = layout->stripe_unit *
- (layout->group_width - layout->parity);
-
- div_u64_rem(offset, stripe_size, &stripe_off);
- if (!stripe_off)
- return true;
-
- *stripe_end = stripe_size - stripe_off;
- return false;
-}
-
-static void objio_init_write(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
-{
- unsigned long stripe_end = 0;
- u64 wb_size;
-
- if (pgio->pg_dreq == NULL)
- wb_size = i_size_read(pgio->pg_inode) - req_offset(req);
- else
- wb_size = nfs_dreq_bytes_left(pgio->pg_dreq);
-
- pnfs_generic_pg_init_write(pgio, req, wb_size);
- if (unlikely(pgio->pg_lseg == NULL))
- return; /* Not pNFS */
-
- if (req->wb_offset ||
- !aligned_on_raid_stripe(req->wb_index * PAGE_SIZE,
- &OBJIO_LSEG(pgio->pg_lseg)->layout,
- &stripe_end)) {
- pgio->pg_layout_private = (void *)stripe_end;
- } else {
- pgio->pg_layout_private = (void *)
- OBJIO_LSEG(pgio->pg_lseg)->layout.max_io_length;
- }
-}
-
-static const struct nfs_pageio_ops objio_pg_read_ops = {
- .pg_init = objio_init_read,
- .pg_test = objio_pg_test,
- .pg_doio = pnfs_generic_pg_readpages,
- .pg_cleanup = pnfs_generic_pg_cleanup,
-};
-
-static const struct nfs_pageio_ops objio_pg_write_ops = {
- .pg_init = objio_init_write,
- .pg_test = objio_pg_test,
- .pg_doio = pnfs_generic_pg_writepages,
- .pg_cleanup = pnfs_generic_pg_cleanup,
-};
-
-static struct pnfs_layoutdriver_type objlayout_type = {
- .id = LAYOUT_OSD2_OBJECTS,
- .name = "LAYOUT_OSD2_OBJECTS",
- .flags = PNFS_LAYOUTRET_ON_SETATTR |
- PNFS_LAYOUTRET_ON_ERROR,
-
- .max_deviceinfo_size = PAGE_SIZE,
- .owner = THIS_MODULE,
- .alloc_layout_hdr = objlayout_alloc_layout_hdr,
- .free_layout_hdr = objlayout_free_layout_hdr,
-
- .alloc_lseg = objlayout_alloc_lseg,
- .free_lseg = objlayout_free_lseg,
-
- .read_pagelist = objlayout_read_pagelist,
- .write_pagelist = objlayout_write_pagelist,
- .pg_read_ops = &objio_pg_read_ops,
- .pg_write_ops = &objio_pg_write_ops,
-
- .sync = pnfs_generic_sync,
-
- .free_deviceid_node = objio_free_deviceid_node,
-
- .encode_layoutcommit = objlayout_encode_layoutcommit,
- .encode_layoutreturn = objlayout_encode_layoutreturn,
-};
-
-MODULE_DESCRIPTION("pNFS Layout Driver for OSD2 objects");
-MODULE_AUTHOR("Benny Halevy <[email protected]>");
-MODULE_LICENSE("GPL");
-
-static int __init
-objlayout_init(void)
-{
- int ret = pnfs_register_layoutdriver(&objlayout_type);
-
- if (ret)
- printk(KERN_INFO
- "NFS: %s: Registering OSD pNFS Layout Driver failed: error=%d\n",
- __func__, ret);
- else
- printk(KERN_INFO "NFS: %s: Registered OSD pNFS Layout Driver\n",
- __func__);
- return ret;
-}
-
-static void __exit
-objlayout_exit(void)
-{
- pnfs_unregister_layoutdriver(&objlayout_type);
- printk(KERN_INFO "NFS: %s: Unregistered OSD pNFS Layout Driver\n",
- __func__);
-}
-
-MODULE_ALIAS("nfs-layouttype4-2");
-
-module_init(objlayout_init);
-module_exit(objlayout_exit);
diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c
deleted file mode 100644
index 2a4cdce939a0..000000000000
--- a/fs/nfs/objlayout/objlayout.c
+++ /dev/null
@@ -1,706 +0,0 @@
-/*
- * pNFS Objects layout driver high level definitions
- *
- * Copyright (C) 2007 Panasas Inc. [year of first publication]
- * All rights reserved.
- *
- * Benny Halevy <[email protected]>
- * Boaz Harrosh <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * See the file COPYING included with this distribution for more details.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Panasas company nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <linux/kmod.h>
-#include <linux/moduleparam.h>
-#include <linux/ratelimit.h>
-#include <scsi/osd_initiator.h>
-#include "objlayout.h"
-
-#define NFSDBG_FACILITY NFSDBG_PNFS_LD
-/*
- * Create a objlayout layout structure for the given inode and return it.
- */
-struct pnfs_layout_hdr *
-objlayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)
-{
- struct objlayout *objlay;
-
- objlay = kzalloc(sizeof(struct objlayout), gfp_flags);
- if (!objlay)
- return NULL;
- spin_lock_init(&objlay->lock);
- INIT_LIST_HEAD(&objlay->err_list);
- dprintk("%s: Return %p\n", __func__, objlay);
- return &objlay->pnfs_layout;
-}
-
-/*
- * Free an objlayout layout structure
- */
-void
-objlayout_free_layout_hdr(struct pnfs_layout_hdr *lo)
-{
- struct objlayout *objlay = OBJLAYOUT(lo);
-
- dprintk("%s: objlay %p\n", __func__, objlay);
-
- WARN_ON(!list_empty(&objlay->err_list));
- kfree(objlay);
-}
-
-/*
- * Unmarshall layout and store it in pnfslay.
- */
-struct pnfs_layout_segment *
-objlayout_alloc_lseg(struct pnfs_layout_hdr *pnfslay,
- struct nfs4_layoutget_res *lgr,
- gfp_t gfp_flags)
-{
- int status = -ENOMEM;
- struct xdr_stream stream;
- struct xdr_buf buf = {
- .pages = lgr->layoutp->pages,
- .page_len = lgr->layoutp->len,
- .buflen = lgr->layoutp->len,
- .len = lgr->layoutp->len,
- };
- struct page *scratch;
- struct pnfs_layout_segment *lseg;
-
- dprintk("%s: Begin pnfslay %p\n", __func__, pnfslay);
-
- scratch = alloc_page(gfp_flags);
- if (!scratch)
- goto err_nofree;
-
- xdr_init_decode(&stream, &buf, NULL);
- xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE);
-
- status = objio_alloc_lseg(&lseg, pnfslay, &lgr->range, &stream, gfp_flags);
- if (unlikely(status)) {
- dprintk("%s: objio_alloc_lseg Return err %d\n", __func__,
- status);
- goto err;
- }
-
- __free_page(scratch);
-
- dprintk("%s: Return %p\n", __func__, lseg);
- return lseg;
-
-err:
- __free_page(scratch);
-err_nofree:
- dprintk("%s: Err Return=>%d\n", __func__, status);
- return ERR_PTR(status);
-}
-
-/*
- * Free a layout segement
- */
-void
-objlayout_free_lseg(struct pnfs_layout_segment *lseg)
-{
- dprintk("%s: freeing layout segment %p\n", __func__, lseg);
-
- if (unlikely(!lseg))
- return;
-
- objio_free_lseg(lseg);
-}
-
-/*
- * I/O Operations
- */
-static inline u64
-end_offset(u64 start, u64 len)
-{
- u64 end;
-
- end = start + len;
- return end >= start ? end : NFS4_MAX_UINT64;
-}
-
-static void _fix_verify_io_params(struct pnfs_layout_segment *lseg,
- struct page ***p_pages, unsigned *p_pgbase,
- u64 offset, unsigned long count)
-{
- u64 lseg_end_offset;
-
- BUG_ON(offset < lseg->pls_range.offset);
- lseg_end_offset = end_offset(lseg->pls_range.offset,
- lseg->pls_range.length);
- BUG_ON(offset >= lseg_end_offset);
- WARN_ON(offset + count > lseg_end_offset);
-
- if (*p_pgbase > PAGE_SIZE) {
- dprintk("%s: pgbase(0x%x) > PAGE_SIZE\n", __func__, *p_pgbase);
- *p_pages += *p_pgbase >> PAGE_SHIFT;
- *p_pgbase &= ~PAGE_MASK;
- }
-}
-
-/*
- * I/O done common code
- */
-static void
-objlayout_iodone(struct objlayout_io_res *oir)
-{
- if (likely(oir->status >= 0)) {
- objio_free_result(oir);
- } else {
- struct objlayout *objlay = oir->objlay;
-
- spin_lock(&objlay->lock);
- objlay->delta_space_valid = OBJ_DSU_INVALID;
- list_add(&objlay->err_list, &oir->err_list);
- spin_unlock(&objlay->lock);
- }
-}
-
-/*
- * objlayout_io_set_result - Set an osd_error code on a specific osd comp.
- *
- * The @index component IO failed (error returned from target). Register
- * the error for later reporting at layout-return.
- */
-void
-objlayout_io_set_result(struct objlayout_io_res *oir, unsigned index,
- struct pnfs_osd_objid *pooid, int osd_error,
- u64 offset, u64 length, bool is_write)
-{
- struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[index];
-
- BUG_ON(index >= oir->num_comps);
- if (osd_error) {
- ioerr->oer_component = *pooid;
- ioerr->oer_comp_offset = offset;
- ioerr->oer_comp_length = length;
- ioerr->oer_iswrite = is_write;
- ioerr->oer_errno = osd_error;
-
- dprintk("%s: err[%d]: errno=%d is_write=%d dev(%llx:%llx) "
- "par=0x%llx obj=0x%llx offset=0x%llx length=0x%llx\n",
- __func__, index, ioerr->oer_errno,
- ioerr->oer_iswrite,
- _DEVID_LO(&ioerr->oer_component.oid_device_id),
- _DEVID_HI(&ioerr->oer_component.oid_device_id),
- ioerr->oer_component.oid_partition_id,
- ioerr->oer_component.oid_object_id,
- ioerr->oer_comp_offset,
- ioerr->oer_comp_length);
- } else {
- /* User need not call if no error is reported */
- ioerr->oer_errno = 0;
- }
-}
-
-/* Function scheduled on rpc workqueue to call ->nfs_readlist_complete().
- * This is because the osd completion is called with ints-off from
- * the block layer
- */
-static void _rpc_read_complete(struct work_struct *work)
-{
- struct rpc_task *task;
- struct nfs_pgio_header *hdr;
-
- dprintk("%s enter\n", __func__);
- task = container_of(work, struct rpc_task, u.tk_work);
- hdr = container_of(task, struct nfs_pgio_header, task);
-
- pnfs_ld_read_done(hdr);
-}
-
-void
-objlayout_read_done(struct objlayout_io_res *oir, ssize_t status, bool sync)
-{
- struct nfs_pgio_header *hdr = oir->rpcdata;
-
- oir->status = hdr->task.tk_status = status;
- if (status >= 0)
- hdr->res.count = status;
- else
- hdr->pnfs_error = status;
- objlayout_iodone(oir);
- /* must not use oir after this point */
-
- dprintk("%s: Return status=%zd eof=%d sync=%d\n", __func__,
- status, hdr->res.eof, sync);
-
- if (sync)
- pnfs_ld_read_done(hdr);
- else {
- INIT_WORK(&hdr->task.u.tk_work, _rpc_read_complete);
- schedule_work(&hdr->task.u.tk_work);
- }
-}
-
-/*
- * Perform sync or async reads.
- */
-enum pnfs_try_status
-objlayout_read_pagelist(struct nfs_pgio_header *hdr)
-{
- struct inode *inode = hdr->inode;
- loff_t offset = hdr->args.offset;
- size_t count = hdr->args.count;
- int err;
- loff_t eof;
-
- eof = i_size_read(inode);
- if (unlikely(offset + count > eof)) {
- if (offset >= eof) {
- err = 0;
- hdr->res.count = 0;
- hdr->res.eof = 1;
- /*FIXME: do we need to call pnfs_ld_read_done() */
- goto out;
- }
- count = eof - offset;
- }
-
- hdr->res.eof = (offset + count) >= eof;
- _fix_verify_io_params(hdr->lseg, &hdr->args.pages,
- &hdr->args.pgbase,
- hdr->args.offset, hdr->args.count);
-
- dprintk("%s: inode(%lx) offset 0x%llx count 0x%Zx eof=%d\n",
- __func__, inode->i_ino, offset, count, hdr->res.eof);
-
- err = objio_read_pagelist(hdr);
- out:
- if (unlikely(err)) {
- hdr->pnfs_error = err;
- dprintk("%s: Returned Error %d\n", __func__, err);
- return PNFS_NOT_ATTEMPTED;
- }
- return PNFS_ATTEMPTED;
-}
-
-/* Function scheduled on rpc workqueue to call ->nfs_writelist_complete().
- * This is because the osd completion is called with ints-off from
- * the block layer
- */
-static void _rpc_write_complete(struct work_struct *work)
-{
- struct rpc_task *task;
- struct nfs_pgio_header *hdr;
-
- dprintk("%s enter\n", __func__);
- task = container_of(work, struct rpc_task, u.tk_work);
- hdr = container_of(task, struct nfs_pgio_header, task);
-
- pnfs_ld_write_done(hdr);
-}
-
-void
-objlayout_write_done(struct objlayout_io_res *oir, ssize_t status, bool sync)
-{
- struct nfs_pgio_header *hdr = oir->rpcdata;
-
- oir->status = hdr->task.tk_status = status;
- if (status >= 0) {
- hdr->res.count = status;
- hdr->verf.committed = oir->committed;
- } else {
- hdr->pnfs_error = status;
- }
- objlayout_iodone(oir);
- /* must not use oir after this point */
-
- dprintk("%s: Return status %zd committed %d sync=%d\n", __func__,
- status, hdr->verf.committed, sync);
-
- if (sync)
- pnfs_ld_write_done(hdr);
- else {
- INIT_WORK(&hdr->task.u.tk_work, _rpc_write_complete);
- schedule_work(&hdr->task.u.tk_work);
- }
-}
-
-/*
- * Perform sync or async writes.
- */
-enum pnfs_try_status
-objlayout_write_pagelist(struct nfs_pgio_header *hdr, int how)
-{
- int err;
-
- _fix_verify_io_params(hdr->lseg, &hdr->args.pages,
- &hdr->args.pgbase,
- hdr->args.offset, hdr->args.count);
-
- err = objio_write_pagelist(hdr, how);
- if (unlikely(err)) {
- hdr->pnfs_error = err;
- dprintk("%s: Returned Error %d\n", __func__, err);
- return PNFS_NOT_ATTEMPTED;
- }
- return PNFS_ATTEMPTED;
-}
-
-void
-objlayout_encode_layoutcommit(struct pnfs_layout_hdr *pnfslay,
- struct xdr_stream *xdr,
- const struct nfs4_layoutcommit_args *args)
-{
- struct objlayout *objlay = OBJLAYOUT(pnfslay);
- struct pnfs_osd_layoutupdate lou;
- __be32 *start;
-
- dprintk("%s: Begin\n", __func__);
-
- spin_lock(&objlay->lock);
- lou.dsu_valid = (objlay->delta_space_valid == OBJ_DSU_VALID);
- lou.dsu_delta = objlay->delta_space_used;
- objlay->delta_space_used = 0;
- objlay->delta_space_valid = OBJ_DSU_INIT;
- lou.olu_ioerr_flag = !list_empty(&objlay->err_list);
- spin_unlock(&objlay->lock);
-
- start = xdr_reserve_space(xdr, 4);
-
- BUG_ON(pnfs_osd_xdr_encode_layoutupdate(xdr, &lou));
-
- *start = cpu_to_be32((xdr->p - start - 1) * 4);
-
- dprintk("%s: Return delta_space_used %lld err %d\n", __func__,
- lou.dsu_delta, lou.olu_ioerr_flag);
-}
-
-static int
-err_prio(u32 oer_errno)
-{
- switch (oer_errno) {
- case 0:
- return 0;
-
- case PNFS_OSD_ERR_RESOURCE:
- return OSD_ERR_PRI_RESOURCE;
- case PNFS_OSD_ERR_BAD_CRED:
- return OSD_ERR_PRI_BAD_CRED;
- case PNFS_OSD_ERR_NO_ACCESS:
- return OSD_ERR_PRI_NO_ACCESS;
- case PNFS_OSD_ERR_UNREACHABLE:
- return OSD_ERR_PRI_UNREACHABLE;
- case PNFS_OSD_ERR_NOT_FOUND:
- return OSD_ERR_PRI_NOT_FOUND;
- case PNFS_OSD_ERR_NO_SPACE:
- return OSD_ERR_PRI_NO_SPACE;
- default:
- WARN_ON(1);
- /* fallthrough */
- case PNFS_OSD_ERR_EIO:
- return OSD_ERR_PRI_EIO;
- }
-}
-
-static void
-merge_ioerr(struct pnfs_osd_ioerr *dest_err,
- const struct pnfs_osd_ioerr *src_err)
-{
- u64 dest_end, src_end;
-
- if (!dest_err->oer_errno) {
- *dest_err = *src_err;
- /* accumulated device must be blank */
- memset(&dest_err->oer_component.oid_device_id, 0,
- sizeof(dest_err->oer_component.oid_device_id));
-
- return;
- }
-
- if (dest_err->oer_component.oid_partition_id !=
- src_err->oer_component.oid_partition_id)
- dest_err->oer_component.oid_partition_id = 0;
-
- if (dest_err->oer_component.oid_object_id !=
- src_err->oer_component.oid_object_id)
- dest_err->oer_component.oid_object_id = 0;
-
- if (dest_err->oer_comp_offset > src_err->oer_comp_offset)
- dest_err->oer_comp_offset = src_err->oer_comp_offset;
-
- dest_end = end_offset(dest_err->oer_comp_offset,
- dest_err->oer_comp_length);
- src_end = end_offset(src_err->oer_comp_offset,
- src_err->oer_comp_length);
- if (dest_end < src_end)
- dest_end = src_end;
-
- dest_err->oer_comp_length = dest_end - dest_err->oer_comp_offset;
-
- if ((src_err->oer_iswrite == dest_err->oer_iswrite) &&
- (err_prio(src_err->oer_errno) > err_prio(dest_err->oer_errno))) {
- dest_err->oer_errno = src_err->oer_errno;
- } else if (src_err->oer_iswrite) {
- dest_err->oer_iswrite = true;
- dest_err->oer_errno = src_err->oer_errno;
- }
-}
-
-static void
-encode_accumulated_error(struct objlayout *objlay, __be32 *p)
-{
- struct objlayout_io_res *oir, *tmp;
- struct pnfs_osd_ioerr accumulated_err = {.oer_errno = 0};
-
- list_for_each_entry_safe(oir, tmp, &objlay->err_list, err_list) {
- unsigned i;
-
- for (i = 0; i < oir->num_comps; i++) {
- struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[i];
-
- if (!ioerr->oer_errno)
- continue;
-
- printk(KERN_ERR "NFS: %s: err[%d]: errno=%d "
- "is_write=%d dev(%llx:%llx) par=0x%llx "
- "obj=0x%llx offset=0x%llx length=0x%llx\n",
- __func__, i, ioerr->oer_errno,
- ioerr->oer_iswrite,
- _DEVID_LO(&ioerr->oer_component.oid_device_id),
- _DEVID_HI(&ioerr->oer_component.oid_device_id),
- ioerr->oer_component.oid_partition_id,
- ioerr->oer_component.oid_object_id,
- ioerr->oer_comp_offset,
- ioerr->oer_comp_length);
-
- merge_ioerr(&accumulated_err, ioerr);
- }
- list_del(&oir->err_list);
- objio_free_result(oir);
- }
-
- pnfs_osd_xdr_encode_ioerr(p, &accumulated_err);
-}
-
-void
-objlayout_encode_layoutreturn(struct xdr_stream *xdr,
- const struct nfs4_layoutreturn_args *args)
-{
- struct pnfs_layout_hdr *pnfslay = args->layout;
- struct objlayout *objlay = OBJLAYOUT(pnfslay);
- struct objlayout_io_res *oir, *tmp;
- __be32 *start;
-
- dprintk("%s: Begin\n", __func__);
- start = xdr_reserve_space(xdr, 4);
- BUG_ON(!start);
-
- spin_lock(&objlay->lock);
-
- list_for_each_entry_safe(oir, tmp, &objlay->err_list, err_list) {
- __be32 *last_xdr = NULL, *p;
- unsigned i;
- int res = 0;
-
- for (i = 0; i < oir->num_comps; i++) {
- struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[i];
-
- if (!ioerr->oer_errno)
- continue;
-
- dprintk("%s: err[%d]: errno=%d is_write=%d "
- "dev(%llx:%llx) par=0x%llx obj=0x%llx "
- "offset=0x%llx length=0x%llx\n",
- __func__, i, ioerr->oer_errno,
- ioerr->oer_iswrite,
- _DEVID_LO(&ioerr->oer_component.oid_device_id),
- _DEVID_HI(&ioerr->oer_component.oid_device_id),
- ioerr->oer_component.oid_partition_id,
- ioerr->oer_component.oid_object_id,
- ioerr->oer_comp_offset,
- ioerr->oer_comp_length);
-
- p = pnfs_osd_xdr_ioerr_reserve_space(xdr);
- if (unlikely(!p)) {
- res = -E2BIG;
- break; /* accumulated_error */
- }
-
- last_xdr = p;
- pnfs_osd_xdr_encode_ioerr(p, &oir->ioerrs[i]);
- }
-
- /* TODO: use xdr_write_pages */
- if (unlikely(res)) {
- /* no space for even one error descriptor */
- BUG_ON(!last_xdr);
-
- /* we've encountered a situation with lots and lots of
- * errors and no space to encode them all. Use the last
- * available slot to report the union of all the
- * remaining errors.
- */
- encode_accumulated_error(objlay, last_xdr);
- goto loop_done;
- }
- list_del(&oir->err_list);
- objio_free_result(oir);
- }
-loop_done:
- spin_unlock(&objlay->lock);
-
- *start = cpu_to_be32((xdr->p - start - 1) * 4);
- dprintk("%s: Return\n", __func__);
-}
-
-enum {
- OBJLAYOUT_MAX_URI_LEN = 256, OBJLAYOUT_MAX_OSDNAME_LEN = 64,
- OBJLAYOUT_MAX_SYSID_HEX_LEN = OSD_SYSTEMID_LEN * 2 + 1,
- OSD_LOGIN_UPCALL_PATHLEN = 256
-};
-
-static char osd_login_prog[OSD_LOGIN_UPCALL_PATHLEN] = "/sbin/osd_login";
-
-module_param_string(osd_login_prog, osd_login_prog, sizeof(osd_login_prog),
- 0600);
-MODULE_PARM_DESC(osd_login_prog, "Path to the osd_login upcall program");
-
-struct __auto_login {
- char uri[OBJLAYOUT_MAX_URI_LEN];
- char osdname[OBJLAYOUT_MAX_OSDNAME_LEN];
- char systemid_hex[OBJLAYOUT_MAX_SYSID_HEX_LEN];
-};
-
-static int __objlayout_upcall(struct __auto_login *login)
-{
- static char *envp[] = { "HOME=/",
- "TERM=linux",
- "PATH=/sbin:/usr/sbin:/bin:/usr/bin",
- NULL
- };
- char *argv[8];
- int ret;
-
- if (unlikely(!osd_login_prog[0])) {
- dprintk("%s: osd_login_prog is disabled\n", __func__);
- return -EACCES;
- }
-
- dprintk("%s uri: %s\n", __func__, login->uri);
- dprintk("%s osdname %s\n", __func__, login->osdname);
- dprintk("%s systemid_hex %s\n", __func__, login->systemid_hex);
-
- argv[0] = (char *)osd_login_prog;
- argv[1] = "-u";
- argv[2] = login->uri;
- argv[3] = "-o";
- argv[4] = login->osdname;
- argv[5] = "-s";
- argv[6] = login->systemid_hex;
- argv[7] = NULL;
-
- ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
- /*
- * Disable the upcall mechanism if we're getting an ENOENT or
- * EACCES error. The admin can re-enable it on the fly by using
- * sysfs to set the objlayoutdriver.osd_login_prog module parameter once
- * the problem has been fixed.
- */
- if (ret == -ENOENT || ret == -EACCES) {
- printk(KERN_ERR "PNFS-OBJ: %s was not found please set "
- "objlayoutdriver.osd_login_prog kernel parameter!\n",
- osd_login_prog);
- osd_login_prog[0] = '\0';
- }
- dprintk("%s %s return value: %d\n", __func__, osd_login_prog, ret);
-
- return ret;
-}
-
-/* Assume dest is all zeros */
-static void __copy_nfsS_and_zero_terminate(struct nfs4_string s,
- char *dest, int max_len,
- const char *var_name)
-{
- if (!s.len)
- return;
-
- if (s.len >= max_len) {
- pr_warn_ratelimited(
- "objlayout_autologin: %s: s.len(%d) >= max_len(%d)",
- var_name, s.len, max_len);
- s.len = max_len - 1; /* space for null terminator */
- }
-
- memcpy(dest, s.data, s.len);
-}
-
-/* Assume sysid is all zeros */
-static void _sysid_2_hex(struct nfs4_string s,
- char sysid[OBJLAYOUT_MAX_SYSID_HEX_LEN])
-{
- int i;
- char *cur;
-
- if (!s.len)
- return;
-
- if (s.len != OSD_SYSTEMID_LEN) {
- pr_warn_ratelimited(
- "objlayout_autologin: systemid_len(%d) != OSD_SYSTEMID_LEN",
- s.len);
- if (s.len > OSD_SYSTEMID_LEN)
- s.len = OSD_SYSTEMID_LEN;
- }
-
- cur = sysid;
- for (i = 0; i < s.len; i++)
- cur = hex_byte_pack(cur, s.data[i]);
-}
-
-int objlayout_autologin(struct pnfs_osd_deviceaddr *deviceaddr)
-{
- int rc;
- struct __auto_login login;
-
- if (!deviceaddr->oda_targetaddr.ota_netaddr.r_addr.len)
- return -ENODEV;
-
- memset(&login, 0, sizeof(login));
- __copy_nfsS_and_zero_terminate(
- deviceaddr->oda_targetaddr.ota_netaddr.r_addr,
- login.uri, sizeof(login.uri), "URI");
-
- __copy_nfsS_and_zero_terminate(
- deviceaddr->oda_osdname,
- login.osdname, sizeof(login.osdname), "OSDNAME");
-
- _sysid_2_hex(deviceaddr->oda_systemid, login.systemid_hex);
-
- rc = __objlayout_upcall(&login);
- if (rc > 0) /* script returns positive values */
- rc = -ENODEV;
-
- return rc;
-}
diff --git a/fs/nfs/objlayout/objlayout.h b/fs/nfs/objlayout/objlayout.h
deleted file mode 100644
index fc94a5872ed4..000000000000
--- a/fs/nfs/objlayout/objlayout.h
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Data types and function declerations for interfacing with the
- * pNFS standard object layout driver.
- *
- * Copyright (C) 2007 Panasas Inc. [year of first publication]
- * All rights reserved.
- *
- * Benny Halevy <[email protected]>
- * Boaz Harrosh <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * See the file COPYING included with this distribution for more details.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Panasas company nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _OBJLAYOUT_H
-#define _OBJLAYOUT_H
-
-#include <linux/nfs_fs.h>
-#include <linux/pnfs_osd_xdr.h>
-#include "../pnfs.h"
-
-/*
- * per-inode layout
- */
-struct objlayout {
- struct pnfs_layout_hdr pnfs_layout;
-
- /* for layout_commit */
- enum osd_delta_space_valid_enum {
- OBJ_DSU_INIT = 0,
- OBJ_DSU_VALID,
- OBJ_DSU_INVALID,
- } delta_space_valid;
- s64 delta_space_used; /* consumed by write ops */
-
- /* for layout_return */
- spinlock_t lock;
- struct list_head err_list;
-};
-
-static inline struct objlayout *
-OBJLAYOUT(struct pnfs_layout_hdr *lo)
-{
- return container_of(lo, struct objlayout, pnfs_layout);
-}
-
-/*
- * per-I/O operation state
- * embedded in objects provider io_state data structure
- */
-struct objlayout_io_res {
- struct objlayout *objlay;
-
- void *rpcdata;
- int status; /* res */
- int committed; /* res */
-
- /* Error reporting (layout_return) */
- struct list_head err_list;
- unsigned num_comps;
- /* Pointer to array of error descriptors of size num_comps.
- * It should contain as many entries as devices in the osd_layout
- * that participate in the I/O. It is up to the io_engine to allocate
- * needed space and set num_comps.
- */
- struct pnfs_osd_ioerr *ioerrs;
-};
-
-static inline
-void objlayout_init_ioerrs(struct objlayout_io_res *oir, unsigned num_comps,
- struct pnfs_osd_ioerr *ioerrs, void *rpcdata,
- struct pnfs_layout_hdr *pnfs_layout_type)
-{
- oir->objlay = OBJLAYOUT(pnfs_layout_type);
- oir->rpcdata = rpcdata;
- INIT_LIST_HEAD(&oir->err_list);
- oir->num_comps = num_comps;
- oir->ioerrs = ioerrs;
-}
-
-/*
- * Raid engine I/O API
- */
-extern int objio_alloc_lseg(struct pnfs_layout_segment **outp,
- struct pnfs_layout_hdr *pnfslay,
- struct pnfs_layout_range *range,
- struct xdr_stream *xdr,
- gfp_t gfp_flags);
-extern void objio_free_lseg(struct pnfs_layout_segment *lseg);
-
-/* objio_free_result will free these @oir structs received from
- * objlayout_{read,write}_done
- */
-extern void objio_free_result(struct objlayout_io_res *oir);
-
-extern int objio_read_pagelist(struct nfs_pgio_header *rdata);
-extern int objio_write_pagelist(struct nfs_pgio_header *wdata, int how);
-
-/*
- * callback API
- */
-extern void objlayout_io_set_result(struct objlayout_io_res *oir,
- unsigned index, struct pnfs_osd_objid *pooid,
- int osd_error, u64 offset, u64 length, bool is_write);
-
-static inline void
-objlayout_add_delta_space_used(struct objlayout *objlay, s64 space_used)
-{
- /* If one of the I/Os errored out and the delta_space_used was
- * invalid we render the complete report as invalid. Protocol mandate
- * the DSU be accurate or not reported.
- */
- spin_lock(&objlay->lock);
- if (objlay->delta_space_valid != OBJ_DSU_INVALID) {
- objlay->delta_space_valid = OBJ_DSU_VALID;
- objlay->delta_space_used += space_used;
- }
- spin_unlock(&objlay->lock);
-}
-
-extern void objlayout_read_done(struct objlayout_io_res *oir,
- ssize_t status, bool sync);
-extern void objlayout_write_done(struct objlayout_io_res *oir,
- ssize_t status, bool sync);
-
-/*
- * exported generic objects function vectors
- */
-
-extern struct pnfs_layout_hdr *objlayout_alloc_layout_hdr(struct inode *, gfp_t gfp_flags);
-extern void objlayout_free_layout_hdr(struct pnfs_layout_hdr *);
-
-extern struct pnfs_layout_segment *objlayout_alloc_lseg(
- struct pnfs_layout_hdr *,
- struct nfs4_layoutget_res *,
- gfp_t gfp_flags);
-extern void objlayout_free_lseg(struct pnfs_layout_segment *);
-
-extern enum pnfs_try_status objlayout_read_pagelist(
- struct nfs_pgio_header *);
-
-extern enum pnfs_try_status objlayout_write_pagelist(
- struct nfs_pgio_header *,
- int how);
-
-extern void objlayout_encode_layoutcommit(
- struct pnfs_layout_hdr *,
- struct xdr_stream *,
- const struct nfs4_layoutcommit_args *);
-
-extern void objlayout_encode_layoutreturn(
- struct xdr_stream *,
- const struct nfs4_layoutreturn_args *);
-
-extern int objlayout_autologin(struct pnfs_osd_deviceaddr *deviceaddr);
-
-#endif /* _OBJLAYOUT_H */
diff --git a/fs/nfs/objlayout/pnfs_osd_xdr_cli.c b/fs/nfs/objlayout/pnfs_osd_xdr_cli.c
deleted file mode 100644
index f093c7ec983b..000000000000
--- a/fs/nfs/objlayout/pnfs_osd_xdr_cli.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * Object-Based pNFS Layout XDR layer
- *
- * Copyright (C) 2007 Panasas Inc. [year of first publication]
- * All rights reserved.
- *
- * Benny Halevy <[email protected]>
- * Boaz Harrosh <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * See the file COPYING included with this distribution for more details.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Panasas company nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <linux/pnfs_osd_xdr.h>
-
-#define NFSDBG_FACILITY NFSDBG_PNFS_LD
-
-/*
- * The following implementation is based on RFC5664
- */
-
-/*
- * struct pnfs_osd_objid {
- * struct nfs4_deviceid oid_device_id;
- * u64 oid_partition_id;
- * u64 oid_object_id;
- * }; // xdr size 32 bytes
- */
-static __be32 *
-_osd_xdr_decode_objid(__be32 *p, struct pnfs_osd_objid *objid)
-{
- p = xdr_decode_opaque_fixed(p, objid->oid_device_id.data,
- sizeof(objid->oid_device_id.data));
-
- p = xdr_decode_hyper(p, &objid->oid_partition_id);
- p = xdr_decode_hyper(p, &objid->oid_object_id);
- return p;
-}
-/*
- * struct pnfs_osd_opaque_cred {
- * u32 cred_len;
- * void *cred;
- * }; // xdr size [variable]
- * The return pointers are from the xdr buffer
- */
-static int
-_osd_xdr_decode_opaque_cred(struct pnfs_osd_opaque_cred *opaque_cred,
- struct xdr_stream *xdr)
-{
- __be32 *p = xdr_inline_decode(xdr, 1);
-
- if (!p)
- return -EINVAL;
-
- opaque_cred->cred_len = be32_to_cpu(*p++);
-
- p = xdr_inline_decode(xdr, opaque_cred->cred_len);
- if (!p)
- return -EINVAL;
-
- opaque_cred->cred = p;
- return 0;
-}
-
-/*
- * struct pnfs_osd_object_cred {
- * struct pnfs_osd_objid oc_object_id;
- * u32 oc_osd_version;
- * u32 oc_cap_key_sec;
- * struct pnfs_osd_opaque_cred oc_cap_key
- * struct pnfs_osd_opaque_cred oc_cap;
- * }; // xdr size 32 + 4 + 4 + [variable] + [variable]
- */
-static int
-_osd_xdr_decode_object_cred(struct pnfs_osd_object_cred *comp,
- struct xdr_stream *xdr)
-{
- __be32 *p = xdr_inline_decode(xdr, 32 + 4 + 4);
- int ret;
-
- if (!p)
- return -EIO;
-
- p = _osd_xdr_decode_objid(p, &comp->oc_object_id);
- comp->oc_osd_version = be32_to_cpup(p++);
- comp->oc_cap_key_sec = be32_to_cpup(p);
-
- ret = _osd_xdr_decode_opaque_cred(&comp->oc_cap_key, xdr);
- if (unlikely(ret))
- return ret;
-
- ret = _osd_xdr_decode_opaque_cred(&comp->oc_cap, xdr);
- return ret;
-}
-
-/*
- * struct pnfs_osd_data_map {
- * u32 odm_num_comps;
- * u64 odm_stripe_unit;
- * u32 odm_group_width;
- * u32 odm_group_depth;
- * u32 odm_mirror_cnt;
- * u32 odm_raid_algorithm;
- * }; // xdr size 4 + 8 + 4 + 4 + 4 + 4
- */
-static inline int
-_osd_data_map_xdr_sz(void)
-{
- return 4 + 8 + 4 + 4 + 4 + 4;
-}
-
-static __be32 *
-_osd_xdr_decode_data_map(__be32 *p, struct pnfs_osd_data_map *data_map)
-{
- data_map->odm_num_comps = be32_to_cpup(p++);
- p = xdr_decode_hyper(p, &data_map->odm_stripe_unit);
- data_map->odm_group_width = be32_to_cpup(p++);
- data_map->odm_group_depth = be32_to_cpup(p++);
- data_map->odm_mirror_cnt = be32_to_cpup(p++);
- data_map->odm_raid_algorithm = be32_to_cpup(p++);
- dprintk("%s: odm_num_comps=%u odm_stripe_unit=%llu odm_group_width=%u "
- "odm_group_depth=%u odm_mirror_cnt=%u odm_raid_algorithm=%u\n",
- __func__,
- data_map->odm_num_comps,
- (unsigned long long)data_map->odm_stripe_unit,
- data_map->odm_group_width,
- data_map->odm_group_depth,
- data_map->odm_mirror_cnt,
- data_map->odm_raid_algorithm);
- return p;
-}
-
-int pnfs_osd_xdr_decode_layout_map(struct pnfs_osd_layout *layout,
- struct pnfs_osd_xdr_decode_layout_iter *iter, struct xdr_stream *xdr)
-{
- __be32 *p;
-
- memset(iter, 0, sizeof(*iter));
-
- p = xdr_inline_decode(xdr, _osd_data_map_xdr_sz() + 4 + 4);
- if (unlikely(!p))
- return -EINVAL;
-
- p = _osd_xdr_decode_data_map(p, &layout->olo_map);
- layout->olo_comps_index = be32_to_cpup(p++);
- layout->olo_num_comps = be32_to_cpup(p++);
- dprintk("%s: olo_comps_index=%d olo_num_comps=%d\n", __func__,
- layout->olo_comps_index, layout->olo_num_comps);
-
- iter->total_comps = layout->olo_num_comps;
- return 0;
-}
-
-bool pnfs_osd_xdr_decode_layout_comp(struct pnfs_osd_object_cred *comp,
- struct pnfs_osd_xdr_decode_layout_iter *iter, struct xdr_stream *xdr,
- int *err)
-{
- BUG_ON(iter->decoded_comps > iter->total_comps);
- if (iter->decoded_comps == iter->total_comps)
- return false;
-
- *err = _osd_xdr_decode_object_cred(comp, xdr);
- if (unlikely(*err)) {
- dprintk("%s: _osd_xdr_decode_object_cred=>%d decoded_comps=%d "
- "total_comps=%d\n", __func__, *err,
- iter->decoded_comps, iter->total_comps);
- return false; /* stop the loop */
- }
- dprintk("%s: dev(%llx:%llx) par=0x%llx obj=0x%llx "
- "key_len=%u cap_len=%u\n",
- __func__,
- _DEVID_LO(&comp->oc_object_id.oid_device_id),
- _DEVID_HI(&comp->oc_object_id.oid_device_id),
- comp->oc_object_id.oid_partition_id,
- comp->oc_object_id.oid_object_id,
- comp->oc_cap_key.cred_len, comp->oc_cap.cred_len);
-
- iter->decoded_comps++;
- return true;
-}
-
-/*
- * Get Device Information Decoding
- *
- * Note: since Device Information is currently done synchronously, all
- * variable strings fields are left inside the rpc buffer and are only
- * pointed to by the pnfs_osd_deviceaddr members. So the read buffer
- * should not be freed while the returned information is in use.
- */
-/*
- *struct nfs4_string {
- * unsigned int len;
- * char *data;
- *}; // size [variable]
- * NOTE: Returned string points to inside the XDR buffer
- */
-static __be32 *
-__read_u8_opaque(__be32 *p, struct nfs4_string *str)
-{
- str->len = be32_to_cpup(p++);
- str->data = (char *)p;
-
- p += XDR_QUADLEN(str->len);
- return p;
-}
-
-/*
- * struct pnfs_osd_targetid {
- * u32 oti_type;
- * struct nfs4_string oti_scsi_device_id;
- * };// size 4 + [variable]
- */
-static __be32 *
-__read_targetid(__be32 *p, struct pnfs_osd_targetid* targetid)
-{
- u32 oti_type;
-
- oti_type = be32_to_cpup(p++);
- targetid->oti_type = oti_type;
-
- switch (oti_type) {
- case OBJ_TARGET_SCSI_NAME:
- case OBJ_TARGET_SCSI_DEVICE_ID:
- p = __read_u8_opaque(p, &targetid->oti_scsi_device_id);
- }
-
- return p;
-}
-
-/*
- * struct pnfs_osd_net_addr {
- * struct nfs4_string r_netid;
- * struct nfs4_string r_addr;
- * };
- */
-static __be32 *
-__read_net_addr(__be32 *p, struct pnfs_osd_net_addr* netaddr)
-{
- p = __read_u8_opaque(p, &netaddr->r_netid);
- p = __read_u8_opaque(p, &netaddr->r_addr);
-
- return p;
-}
-
-/*
- * struct pnfs_osd_targetaddr {
- * u32 ota_available;
- * struct pnfs_osd_net_addr ota_netaddr;
- * };
- */
-static __be32 *
-__read_targetaddr(__be32 *p, struct pnfs_osd_targetaddr *targetaddr)
-{
- u32 ota_available;
-
- ota_available = be32_to_cpup(p++);
- targetaddr->ota_available = ota_available;
-
- if (ota_available)
- p = __read_net_addr(p, &targetaddr->ota_netaddr);
-
-
- return p;
-}
-
-/*
- * struct pnfs_osd_deviceaddr {
- * struct pnfs_osd_targetid oda_targetid;
- * struct pnfs_osd_targetaddr oda_targetaddr;
- * u8 oda_lun[8];
- * struct nfs4_string oda_systemid;
- * struct pnfs_osd_object_cred oda_root_obj_cred;
- * struct nfs4_string oda_osdname;
- * };
- */
-
-/* We need this version for the pnfs_osd_xdr_decode_deviceaddr which does
- * not have an xdr_stream
- */
-static __be32 *
-__read_opaque_cred(__be32 *p,
- struct pnfs_osd_opaque_cred *opaque_cred)
-{
- opaque_cred->cred_len = be32_to_cpu(*p++);
- opaque_cred->cred = p;
- return p + XDR_QUADLEN(opaque_cred->cred_len);
-}
-
-static __be32 *
-__read_object_cred(__be32 *p, struct pnfs_osd_object_cred *comp)
-{
- p = _osd_xdr_decode_objid(p, &comp->oc_object_id);
- comp->oc_osd_version = be32_to_cpup(p++);
- comp->oc_cap_key_sec = be32_to_cpup(p++);
-
- p = __read_opaque_cred(p, &comp->oc_cap_key);
- p = __read_opaque_cred(p, &comp->oc_cap);
- return p;
-}
-
-void pnfs_osd_xdr_decode_deviceaddr(
- struct pnfs_osd_deviceaddr *deviceaddr, __be32 *p)
-{
- p = __read_targetid(p, &deviceaddr->oda_targetid);
-
- p = __read_targetaddr(p, &deviceaddr->oda_targetaddr);
-
- p = xdr_decode_opaque_fixed(p, deviceaddr->oda_lun,
- sizeof(deviceaddr->oda_lun));
-
- p = __read_u8_opaque(p, &deviceaddr->oda_systemid);
-
- p = __read_object_cred(p, &deviceaddr->oda_root_obj_cred);
-
- p = __read_u8_opaque(p, &deviceaddr->oda_osdname);
-
- /* libosd likes this terminated in dbg. It's last, so no problems */
- deviceaddr->oda_osdname.data[deviceaddr->oda_osdname.len] = 0;
-}
-
-/*
- * struct pnfs_osd_layoutupdate {
- * u32 dsu_valid;
- * s64 dsu_delta;
- * u32 olu_ioerr_flag;
- * }; xdr size 4 + 8 + 4
- */
-int
-pnfs_osd_xdr_encode_layoutupdate(struct xdr_stream *xdr,
- struct pnfs_osd_layoutupdate *lou)
-{
- __be32 *p = xdr_reserve_space(xdr, 4 + 8 + 4);
-
- if (!p)
- return -E2BIG;
-
- *p++ = cpu_to_be32(lou->dsu_valid);
- if (lou->dsu_valid)
- p = xdr_encode_hyper(p, lou->dsu_delta);
- *p++ = cpu_to_be32(lou->olu_ioerr_flag);
- return 0;
-}
-
-/*
- * struct pnfs_osd_objid {
- * struct nfs4_deviceid oid_device_id;
- * u64 oid_partition_id;
- * u64 oid_object_id;
- * }; // xdr size 32 bytes
- */
-static inline __be32 *
-pnfs_osd_xdr_encode_objid(__be32 *p, struct pnfs_osd_objid *object_id)
-{
- p = xdr_encode_opaque_fixed(p, &object_id->oid_device_id.data,
- sizeof(object_id->oid_device_id.data));
- p = xdr_encode_hyper(p, object_id->oid_partition_id);
- p = xdr_encode_hyper(p, object_id->oid_object_id);
-
- return p;
-}
-
-/*
- * struct pnfs_osd_ioerr {
- * struct pnfs_osd_objid oer_component;
- * u64 oer_comp_offset;
- * u64 oer_comp_length;
- * u32 oer_iswrite;
- * u32 oer_errno;
- * }; // xdr size 32 + 24 bytes
- */
-void pnfs_osd_xdr_encode_ioerr(__be32 *p, struct pnfs_osd_ioerr *ioerr)
-{
- p = pnfs_osd_xdr_encode_objid(p, &ioerr->oer_component);
- p = xdr_encode_hyper(p, ioerr->oer_comp_offset);
- p = xdr_encode_hyper(p, ioerr->oer_comp_length);
- *p++ = cpu_to_be32(ioerr->oer_iswrite);
- *p = cpu_to_be32(ioerr->oer_errno);
-}
-
-__be32 *pnfs_osd_xdr_ioerr_reserve_space(struct xdr_stream *xdr)
-{
- __be32 *p;
-
- p = xdr_reserve_space(xdr, 32 + 24);
- if (unlikely(!p))
- dprintk("%s: out of xdr space\n", __func__);
-
- return p;
-}
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 6e629b856a00..de9066a92c0d 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -29,19 +29,6 @@
static struct kmem_cache *nfs_page_cachep;
static const struct rpc_call_ops nfs_pgio_common_ops;
-static bool nfs_pgarray_set(struct nfs_page_array *p, unsigned int pagecount)
-{
- p->npages = pagecount;
- if (pagecount <= ARRAY_SIZE(p->page_array))
- p->pagevec = p->page_array;
- else {
- p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL);
- if (!p->pagevec)
- p->npages = 0;
- }
- return p->pagevec != NULL;
-}
-
struct nfs_pgio_mirror *
nfs_pgio_current_mirror(struct nfs_pageio_descriptor *desc)
{
@@ -63,8 +50,8 @@ void nfs_pgheader_init(struct nfs_pageio_descriptor *desc,
hdr->cred = hdr->req->wb_context->cred;
hdr->io_start = req_offset(hdr->req);
hdr->good_bytes = mirror->pg_count;
+ hdr->io_completion = desc->pg_io_completion;
hdr->dreq = desc->pg_dreq;
- hdr->layout_private = desc->pg_layout_private;
hdr->release = release;
hdr->completion_ops = desc->pg_completion_ops;
if (hdr->completion_ops->init_hdr)
@@ -115,6 +102,35 @@ nfs_iocounter_wait(struct nfs_lock_context *l_ctx)
TASK_KILLABLE);
}
+/**
+ * nfs_async_iocounter_wait - wait on a rpc_waitqueue for I/O
+ * to complete
+ * @task: the rpc_task that should wait
+ * @l_ctx: nfs_lock_context with io_counter to check
+ *
+ * Returns true if there is outstanding I/O to wait on and the
+ * task has been put to sleep.
+ */
+bool
+nfs_async_iocounter_wait(struct rpc_task *task, struct nfs_lock_context *l_ctx)
+{
+ struct inode *inode = d_inode(l_ctx->open_context->dentry);
+ bool ret = false;
+
+ if (atomic_read(&l_ctx->io_count) > 0) {
+ rpc_sleep_on(&NFS_SERVER(inode)->uoc_rpcwaitq, task, NULL);
+ ret = true;
+ }
+
+ if (atomic_read(&l_ctx->io_count) == 0) {
+ rpc_wake_up_queued_task(&NFS_SERVER(inode)->uoc_rpcwaitq, task);
+ ret = false;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(nfs_async_iocounter_wait);
+
/*
* nfs_page_group_lock - lock the head of the page group
* @req - request in group that is to be locked
@@ -139,9 +155,12 @@ nfs_page_group_lock(struct nfs_page *req, bool nonblock)
if (!test_and_set_bit(PG_HEADLOCK, &head->wb_flags))
return 0;
- if (!nonblock)
+ if (!nonblock) {
+ set_bit(PG_CONTENDED1, &head->wb_flags);
+ smp_mb__after_atomic();
return wait_on_bit_lock(&head->wb_flags, PG_HEADLOCK,
TASK_UNINTERRUPTIBLE);
+ }
return -EAGAIN;
}
@@ -159,6 +178,10 @@ nfs_page_group_lock_wait(struct nfs_page *req)
WARN_ON_ONCE(head != head->wb_head);
+ if (!test_bit(PG_HEADLOCK, &head->wb_flags))
+ return;
+ set_bit(PG_CONTENDED1, &head->wb_flags);
+ smp_mb__after_atomic();
wait_on_bit(&head->wb_flags, PG_HEADLOCK,
TASK_UNINTERRUPTIBLE);
}
@@ -177,6 +200,8 @@ nfs_page_group_unlock(struct nfs_page *req)
smp_mb__before_atomic();
clear_bit(PG_HEADLOCK, &head->wb_flags);
smp_mb__after_atomic();
+ if (!test_bit(PG_CONTENDED1, &head->wb_flags))
+ return;
wake_up_bit(&head->wb_flags, PG_HEADLOCK);
}
@@ -367,6 +392,8 @@ void nfs_unlock_request(struct nfs_page *req)
smp_mb__before_atomic();
clear_bit(PG_BUSY, &req->wb_flags);
smp_mb__after_atomic();
+ if (!test_bit(PG_CONTENDED2, &req->wb_flags))
+ return;
wake_up_bit(&req->wb_flags, PG_BUSY);
}
@@ -398,8 +425,11 @@ static void nfs_clear_request(struct nfs_page *req)
req->wb_page = NULL;
}
if (l_ctx != NULL) {
- if (atomic_dec_and_test(&l_ctx->io_count))
+ if (atomic_dec_and_test(&l_ctx->io_count)) {
wake_up_atomic_t(&l_ctx->io_count);
+ if (test_bit(NFS_CONTEXT_UNLOCK, &ctx->flags))
+ rpc_wake_up(&NFS_SERVER(d_inode(ctx->dentry))->uoc_rpcwaitq);
+ }
nfs_put_lock_context(l_ctx);
req->wb_lock_context = NULL;
}
@@ -446,6 +476,10 @@ void nfs_release_request(struct nfs_page *req)
int
nfs_wait_on_request(struct nfs_page *req)
{
+ if (!test_bit(PG_BUSY, &req->wb_flags))
+ return 0;
+ set_bit(PG_CONTENDED2, &req->wb_flags);
+ smp_mb__after_atomic();
return wait_on_bit_io(&req->wb_flags, PG_BUSY,
TASK_UNINTERRUPTIBLE);
}
@@ -677,7 +711,8 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
const struct nfs_pgio_completion_ops *compl_ops,
const struct nfs_rw_ops *rw_ops,
size_t bsize,
- int io_flags)
+ int io_flags,
+ gfp_t gfp_flags)
{
struct nfs_pgio_mirror *new;
int i;
@@ -690,8 +725,8 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
desc->pg_ioflags = io_flags;
desc->pg_error = 0;
desc->pg_lseg = NULL;
+ desc->pg_io_completion = NULL;
desc->pg_dreq = NULL;
- desc->pg_layout_private = NULL;
desc->pg_bsize = bsize;
desc->pg_mirror_count = 1;
@@ -701,7 +736,7 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
/* until we have a request, we don't have an lseg and no
* idea how many mirrors there will be */
new = kcalloc(NFS_PAGEIO_DESCRIPTOR_MIRROR_MAX,
- sizeof(struct nfs_pgio_mirror), GFP_KERNEL);
+ sizeof(struct nfs_pgio_mirror), gfp_flags);
desc->pg_mirrors_dynamic = new;
desc->pg_mirrors = new;
@@ -754,13 +789,25 @@ int nfs_generic_pgio(struct nfs_pageio_descriptor *desc,
*last_page;
struct list_head *head = &mirror->pg_list;
struct nfs_commit_info cinfo;
+ struct nfs_page_array *pg_array = &hdr->page_array;
unsigned int pagecount, pageused;
+ gfp_t gfp_flags = GFP_KERNEL;
pagecount = nfs_page_array_len(mirror->pg_base, mirror->pg_count);
- if (!nfs_pgarray_set(&hdr->page_array, pagecount)) {
- nfs_pgio_error(hdr);
- desc->pg_error = -ENOMEM;
- return desc->pg_error;
+ pg_array->npages = pagecount;
+
+ if (pagecount <= ARRAY_SIZE(pg_array->page_array))
+ pg_array->pagevec = pg_array->page_array;
+ else {
+ if (hdr->rw_mode == FMODE_WRITE)
+ gfp_flags = GFP_NOIO;
+ pg_array->pagevec = kcalloc(pagecount, sizeof(struct page *), gfp_flags);
+ if (!pg_array->pagevec) {
+ pg_array->npages = 0;
+ nfs_pgio_error(hdr);
+ desc->pg_error = -ENOMEM;
+ return desc->pg_error;
+ }
}
nfs_init_cinfo(&cinfo, desc->pg_inode, desc->pg_dreq);
@@ -1202,6 +1249,7 @@ int nfs_pageio_resend(struct nfs_pageio_descriptor *desc,
{
LIST_HEAD(failed);
+ desc->pg_io_completion = hdr->io_completion;
desc->pg_dreq = hdr->dreq;
while (!list_empty(&hdr->pages)) {
struct nfs_page *req = nfs_list_entry(hdr->pages.next);
@@ -1256,8 +1304,10 @@ void nfs_pageio_cond_complete(struct nfs_pageio_descriptor *desc, pgoff_t index)
mirror = &desc->pg_mirrors[midx];
if (!list_empty(&mirror->pg_list)) {
prev = nfs_list_entry(mirror->pg_list.prev);
- if (index != prev->wb_index + 1)
- nfs_pageio_complete_mirror(desc, midx);
+ if (index != prev->wb_index + 1) {
+ nfs_pageio_complete(desc);
+ break;
+ }
}
}
}
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index dd042498ce7c..c383d0913b54 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -322,9 +322,15 @@ pnfs_set_plh_return_info(struct pnfs_layout_hdr *lo, enum pnfs_iomode iomode,
static void
pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo)
{
+ struct pnfs_layout_segment *lseg;
lo->plh_return_iomode = 0;
lo->plh_return_seq = 0;
clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
+ list_for_each_entry(lseg, &lo->plh_segs, pls_list) {
+ if (!test_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags))
+ continue;
+ pnfs_set_plh_return_info(lo, lseg->pls_range.iomode, 0);
+ }
}
static void pnfs_clear_layoutreturn_waitbit(struct pnfs_layout_hdr *lo)
@@ -367,9 +373,9 @@ pnfs_mark_layout_stateid_invalid(struct pnfs_layout_hdr *lo,
struct pnfs_layout_segment *lseg, *next;
set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
- pnfs_clear_layoutreturn_info(lo);
list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list)
pnfs_clear_lseg_state(lseg, lseg_list);
+ pnfs_clear_layoutreturn_info(lo);
pnfs_free_returned_lsegs(lo, lseg_list, &range, 0);
if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags) &&
!test_and_set_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags))
@@ -563,7 +569,6 @@ pnfs_put_lseg_locked(struct pnfs_layout_segment *lseg)
}
}
}
-EXPORT_SYMBOL_GPL(pnfs_put_lseg_locked);
/*
* is l2 fully contained in l1?
@@ -728,6 +733,7 @@ pnfs_destroy_layout(struct nfs_inode *nfsi)
pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RW_FAILED);
spin_unlock(&nfsi->vfs_inode.i_lock);
pnfs_free_lseg_list(&tmp_list);
+ nfs_commit_inode(&nfsi->vfs_inode, 0);
pnfs_put_layout_hdr(lo);
} else
spin_unlock(&nfsi->vfs_inode.i_lock);
@@ -1209,7 +1215,6 @@ out:
dprintk("<-- %s status: %d\n", __func__, status);
return status;
}
-EXPORT_SYMBOL_GPL(_pnfs_return_layout);
int
pnfs_commit_and_return_layout(struct inode *inode)
@@ -1991,6 +1996,8 @@ out_forget:
spin_unlock(&ino->i_lock);
lseg->pls_layout = lo;
NFS_SERVER(ino)->pnfs_curr_ld->free_lseg(lseg);
+ if (!pnfs_layout_is_valid(lo))
+ nfs_commit_inode(ino, 0);
return ERR_PTR(-EAGAIN);
}
@@ -2051,9 +2058,11 @@ void pnfs_error_mark_layout_for_return(struct inode *inode,
bool return_now = false;
spin_lock(&inode->i_lock);
+ if (!pnfs_layout_is_valid(lo)) {
+ spin_unlock(&inode->i_lock);
+ return;
+ }
pnfs_set_plh_return_info(lo, range.iomode, 0);
- /* Block LAYOUTGET */
- set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags);
/*
* mark all matching lsegs so that we are sure to have no live
* segments at hand when sending layoutreturn. See pnfs_put_lseg()
@@ -2075,10 +2084,36 @@ void pnfs_error_mark_layout_for_return(struct inode *inode,
EXPORT_SYMBOL_GPL(pnfs_error_mark_layout_for_return);
void
+pnfs_generic_pg_check_layout(struct nfs_pageio_descriptor *pgio)
+{
+ if (pgio->pg_lseg == NULL ||
+ test_bit(NFS_LSEG_VALID, &pgio->pg_lseg->pls_flags))
+ return;
+ pnfs_put_lseg(pgio->pg_lseg);
+ pgio->pg_lseg = NULL;
+}
+EXPORT_SYMBOL_GPL(pnfs_generic_pg_check_layout);
+
+/*
+ * Check for any intersection between the request and the pgio->pg_lseg,
+ * and if none, put this pgio->pg_lseg away.
+ */
+static void
+pnfs_generic_pg_check_range(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
+{
+ if (pgio->pg_lseg && !pnfs_lseg_request_intersecting(pgio->pg_lseg, req)) {
+ pnfs_put_lseg(pgio->pg_lseg);
+ pgio->pg_lseg = NULL;
+ }
+}
+
+void
pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *req)
{
u64 rd_size = req->wb_bytes;
+ pnfs_generic_pg_check_layout(pgio);
+ pnfs_generic_pg_check_range(pgio, req);
if (pgio->pg_lseg == NULL) {
if (pgio->pg_dreq == NULL)
rd_size = i_size_read(pgio->pg_inode) - req_offset(req);
@@ -2109,6 +2144,8 @@ void
pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio,
struct nfs_page *req, u64 wb_size)
{
+ pnfs_generic_pg_check_layout(pgio);
+ pnfs_generic_pg_check_range(pgio, req);
if (pgio->pg_lseg == NULL) {
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
@@ -2169,16 +2206,10 @@ pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio,
seg_end = pnfs_end_offset(pgio->pg_lseg->pls_range.offset,
pgio->pg_lseg->pls_range.length);
req_start = req_offset(req);
- WARN_ON_ONCE(req_start >= seg_end);
+
/* start of request is past the last byte of this segment */
- if (req_start >= seg_end) {
- /* reference the new lseg */
- if (pgio->pg_ops->pg_cleanup)
- pgio->pg_ops->pg_cleanup(pgio);
- if (pgio->pg_ops->pg_init)
- pgio->pg_ops->pg_init(pgio, req);
+ if (req_start >= seg_end)
return 0;
- }
/* adjust 'size' iff there are fewer bytes left in the
* segment than what nfs_generic_pg_test returned */
@@ -2277,8 +2308,20 @@ pnfs_do_write(struct nfs_pageio_descriptor *desc,
enum pnfs_try_status trypnfs;
trypnfs = pnfs_try_to_write_data(hdr, call_ops, lseg, how);
- if (trypnfs == PNFS_NOT_ATTEMPTED)
+ switch (trypnfs) {
+ case PNFS_NOT_ATTEMPTED:
pnfs_write_through_mds(desc, hdr);
+ case PNFS_ATTEMPTED:
+ break;
+ case PNFS_TRY_AGAIN:
+ /* cleanup hdr and prepare to redo pnfs */
+ if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
+ struct nfs_pgio_mirror *mirror = nfs_pgio_current_mirror(desc);
+ list_splice_init(&hdr->pages, &mirror->pg_list);
+ mirror->pg_recoalesce = 1;
+ }
+ hdr->mds_ops->rpc_release(hdr);
+ }
}
static void pnfs_writehdr_free(struct nfs_pgio_header *hdr)
@@ -2408,10 +2451,20 @@ pnfs_do_read(struct nfs_pageio_descriptor *desc, struct nfs_pgio_header *hdr)
enum pnfs_try_status trypnfs;
trypnfs = pnfs_try_to_read_data(hdr, call_ops, lseg);
- if (trypnfs == PNFS_TRY_AGAIN)
- pnfs_read_resend_pnfs(hdr);
- if (trypnfs == PNFS_NOT_ATTEMPTED || hdr->task.tk_status)
+ switch (trypnfs) {
+ case PNFS_NOT_ATTEMPTED:
pnfs_read_through_mds(desc, hdr);
+ case PNFS_ATTEMPTED:
+ break;
+ case PNFS_TRY_AGAIN:
+ /* cleanup hdr and prepare to redo pnfs */
+ if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
+ struct nfs_pgio_mirror *mirror = nfs_pgio_current_mirror(desc);
+ list_splice_init(&hdr->pages, &mirror->pg_list);
+ mirror->pg_recoalesce = 1;
+ }
+ hdr->mds_ops->rpc_release(hdr);
+ }
}
static void pnfs_readhdr_free(struct nfs_pgio_header *hdr)
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 63f77b49a586..99731e3e332f 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -173,14 +173,9 @@ struct pnfs_layoutdriver_type {
gfp_t gfp_flags);
int (*prepare_layoutreturn) (struct nfs4_layoutreturn_args *);
- void (*encode_layoutreturn) (struct xdr_stream *xdr,
- const struct nfs4_layoutreturn_args *args);
void (*cleanup_layoutcommit) (struct nfs4_layoutcommit_data *data);
int (*prepare_layoutcommit) (struct nfs4_layoutcommit_args *args);
- void (*encode_layoutcommit) (struct pnfs_layout_hdr *lo,
- struct xdr_stream *xdr,
- const struct nfs4_layoutcommit_args *args);
int (*prepare_layoutstats) (struct nfs42_layoutstat_args *args);
};
@@ -239,6 +234,7 @@ void pnfs_put_lseg_locked(struct pnfs_layout_segment *lseg);
void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, struct nfs_fsinfo *);
void unset_pnfs_layoutdriver(struct nfs_server *);
+void pnfs_generic_pg_check_layout(struct nfs_pageio_descriptor *pgio);
void pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *, struct nfs_page *);
int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc);
void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio,
@@ -367,7 +363,7 @@ void nfs4_pnfs_ds_put(struct nfs4_pnfs_ds *ds);
struct nfs4_pnfs_ds *nfs4_pnfs_ds_add(struct list_head *dsaddrs,
gfp_t gfp_flags);
void nfs4_pnfs_v3_ds_connect_unload(void);
-void nfs4_pnfs_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds,
+int nfs4_pnfs_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds,
struct nfs4_deviceid_node *devid, unsigned int timeo,
unsigned int retrans, u32 version, u32 minor_version);
struct nfs4_pnfs_ds_addr *nfs4_decode_mp_ds_addr(struct net *net,
@@ -597,6 +593,16 @@ pnfs_lseg_range_intersecting(const struct pnfs_layout_range *l1,
return pnfs_is_range_intersecting(l1->offset, end1, l2->offset, end2);
}
+static inline bool
+pnfs_lseg_request_intersecting(struct pnfs_layout_segment *lseg, struct nfs_page *req)
+{
+ u64 seg_last = pnfs_end_offset(lseg->pls_range.offset, lseg->pls_range.length);
+ u64 req_last = req_offset(req) + req->wb_bytes;
+
+ return pnfs_is_range_intersecting(lseg->pls_range.offset, seg_last,
+ req_offset(req), req_last);
+}
+
extern unsigned int layoutstats_timer;
#ifdef NFS_DEBUG
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index 9414b492439f..25f28fa64c57 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -159,13 +159,18 @@ void pnfs_generic_recover_commit_reqs(struct list_head *dst,
{
struct pnfs_commit_bucket *b;
struct pnfs_layout_segment *freeme;
+ int nwritten;
int i;
lockdep_assert_held(&cinfo->inode->i_lock);
restart:
for (i = 0, b = cinfo->ds->buckets; i < cinfo->ds->nbuckets; i++, b++) {
- if (pnfs_generic_transfer_commit_list(&b->written, dst,
- cinfo, 0)) {
+ nwritten = pnfs_generic_transfer_commit_list(&b->written,
+ dst, cinfo, 0);
+ if (!nwritten)
+ continue;
+ cinfo->ds->nwritten -= nwritten;
+ if (list_empty(&b->written)) {
freeme = b->wlseg;
b->wlseg = NULL;
spin_unlock(&cinfo->inode->i_lock);
@@ -174,7 +179,6 @@ restart:
goto restart;
}
}
- cinfo->ds->nwritten = 0;
}
EXPORT_SYMBOL_GPL(pnfs_generic_recover_commit_reqs);
@@ -183,6 +187,7 @@ static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
struct pnfs_ds_commit_info *fl_cinfo = cinfo->ds;
struct pnfs_commit_bucket *bucket;
struct pnfs_layout_segment *freeme;
+ struct list_head *pos;
LIST_HEAD(pages);
int i;
@@ -193,6 +198,8 @@ static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
continue;
freeme = bucket->clseg;
bucket->clseg = NULL;
+ list_for_each(pos, &bucket->committing)
+ cinfo->ds->ncommitting--;
list_splice_init(&bucket->committing, &pages);
spin_unlock(&cinfo->inode->i_lock);
nfs_retry_commit(&pages, freeme, cinfo, i);
@@ -217,7 +224,7 @@ pnfs_generic_alloc_ds_commits(struct nfs_commit_info *cinfo,
for (i = 0; i < fl_cinfo->nbuckets; i++, bucket++) {
if (list_empty(&bucket->committing))
continue;
- data = nfs_commitdata_alloc();
+ data = nfs_commitdata_alloc(false);
if (!data)
break;
data->ds_commit_index = i;
@@ -236,9 +243,12 @@ void pnfs_fetch_commit_bucket_list(struct list_head *pages,
struct nfs_commit_info *cinfo)
{
struct pnfs_commit_bucket *bucket;
+ struct list_head *pos;
bucket = &cinfo->ds->buckets[data->ds_commit_index];
spin_lock(&cinfo->inode->i_lock);
+ list_for_each(pos, &bucket->committing)
+ cinfo->ds->ncommitting--;
list_splice_init(&bucket->committing, pages);
data->lseg = bucket->clseg;
bucket->clseg = NULL;
@@ -283,16 +293,10 @@ pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
unsigned int nreq = 0;
if (!list_empty(mds_pages)) {
- data = nfs_commitdata_alloc();
- if (data != NULL) {
- data->ds_commit_index = -1;
- list_add(&data->pages, &list);
- nreq++;
- } else {
- nfs_retry_commit(mds_pages, NULL, cinfo, 0);
- pnfs_generic_retry_commit(cinfo, 0);
- return -ENOMEM;
- }
+ data = nfs_commitdata_alloc(true);
+ data->ds_commit_index = -1;
+ list_add(&data->pages, &list);
+ nreq++;
}
nreq += pnfs_generic_alloc_ds_commits(cinfo, &list);
@@ -329,7 +333,6 @@ pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
}
}
out:
- cinfo->ds->ncommitting = 0;
return PNFS_ATTEMPTED;
}
EXPORT_SYMBOL_GPL(pnfs_generic_commit_pagelist);
@@ -619,7 +622,6 @@ void nfs4_pnfs_v3_ds_connect_unload(void)
get_v3_ds_connect = NULL;
}
}
-EXPORT_SYMBOL_GPL(nfs4_pnfs_v3_ds_connect_unload);
static int _nfs4_pnfs_v3_ds_connect(struct nfs_server *mds_srv,
struct nfs4_pnfs_ds *ds,
@@ -745,15 +747,17 @@ out:
/*
* Create an rpc connection to the nfs4_pnfs_ds data server.
* Currently only supports IPv4 and IPv6 addresses.
- * If connection fails, make devid unavailable.
+ * If connection fails, make devid unavailable and return a -errno.
*/
-void nfs4_pnfs_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds,
+int nfs4_pnfs_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds,
struct nfs4_deviceid_node *devid, unsigned int timeo,
unsigned int retrans, u32 version, u32 minor_version)
{
- if (test_and_set_bit(NFS4DS_CONNECTING, &ds->ds_state) == 0) {
- int err = 0;
+ int err;
+again:
+ err = 0;
+ if (test_and_set_bit(NFS4DS_CONNECTING, &ds->ds_state) == 0) {
if (version == 3) {
err = _nfs4_pnfs_v3_ds_connect(mds_srv, ds, timeo,
retrans);
@@ -766,12 +770,29 @@ void nfs4_pnfs_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds,
err = -EPROTONOSUPPORT;
}
- if (err)
- nfs4_mark_deviceid_unavailable(devid);
nfs4_clear_ds_conn_bit(ds);
} else {
nfs4_wait_ds_connect(ds);
+
+ /* what was waited on didn't connect AND didn't mark unavail */
+ if (!ds->ds_clp && !nfs4_test_deviceid_unavailable(devid))
+ goto again;
}
+
+ /*
+ * At this point the ds->ds_clp should be ready, but it might have
+ * hit an error.
+ */
+ if (!err) {
+ if (!ds->ds_clp || !nfs_client_init_is_complete(ds->ds_clp)) {
+ WARN_ON_ONCE(ds->ds_clp ||
+ !nfs4_test_deviceid_unavailable(devid));
+ return -EINVAL;
+ }
+ err = nfs_client_init_status(ds->ds_clp);
+ }
+
+ return err;
}
EXPORT_SYMBOL_GPL(nfs4_pnfs_ds_connect);
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index b7bca8303989..7962e49097c3 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -485,7 +485,7 @@ nfs_proc_rmdir(struct inode *dir, const struct qstr *name)
*/
static int
nfs_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
- u64 cookie, struct page **pages, unsigned int count, int plus)
+ u64 cookie, struct page **pages, unsigned int count, bool plus)
{
struct inode *dir = d_inode(dentry);
struct nfs_readdirargs arg = {
@@ -638,7 +638,7 @@ nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
{
struct inode *inode = file_inode(filp);
- return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
+ return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, NULL);
}
/* Helper functions for NFS lock bounds checking */
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index defc9233e985..a8421d9dab6a 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -35,7 +35,11 @@ static struct kmem_cache *nfs_rdata_cachep;
static struct nfs_pgio_header *nfs_readhdr_alloc(void)
{
- return kmem_cache_zalloc(nfs_rdata_cachep, GFP_KERNEL);
+ struct nfs_pgio_header *p = kmem_cache_zalloc(nfs_rdata_cachep, GFP_KERNEL);
+
+ if (p)
+ p->rw_mode = FMODE_READ;
+ return p;
}
static void nfs_readhdr_free(struct nfs_pgio_header *rhdr)
@@ -64,7 +68,7 @@ void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio,
pg_ops = server->pnfs_curr_ld->pg_read_ops;
#endif
nfs_pageio_init(pgio, inode, pg_ops, compl_ops, &nfs_rw_read_ops,
- server->rsize, 0);
+ server->rsize, 0, GFP_KERNEL);
}
EXPORT_SYMBOL_GPL(nfs_pageio_init_read);
@@ -451,7 +455,6 @@ void nfs_destroy_readpagecache(void)
}
static const struct nfs_rw_ops nfs_rw_read_ops = {
- .rw_mode = FMODE_READ,
.rw_alloc_header = nfs_readhdr_alloc,
.rw_free_header = nfs_readhdr_free,
.rw_done = nfs_readpage_done,
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 6bca17883b93..d828ef88e7db 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -531,39 +531,32 @@ static void nfs_show_mountd_netid(struct seq_file *m, struct nfs_server *nfss,
int showdefaults)
{
struct sockaddr *sap = (struct sockaddr *) &nfss->mountd_address;
+ char *proto = NULL;
- seq_printf(m, ",mountproto=");
switch (sap->sa_family) {
case AF_INET:
switch (nfss->mountd_protocol) {
case IPPROTO_UDP:
- seq_printf(m, RPCBIND_NETID_UDP);
+ proto = RPCBIND_NETID_UDP;
break;
case IPPROTO_TCP:
- seq_printf(m, RPCBIND_NETID_TCP);
+ proto = RPCBIND_NETID_TCP;
break;
- default:
- if (showdefaults)
- seq_printf(m, "auto");
}
break;
case AF_INET6:
switch (nfss->mountd_protocol) {
case IPPROTO_UDP:
- seq_printf(m, RPCBIND_NETID_UDP6);
+ proto = RPCBIND_NETID_UDP6;
break;
case IPPROTO_TCP:
- seq_printf(m, RPCBIND_NETID_TCP6);
+ proto = RPCBIND_NETID_TCP6;
break;
- default:
- if (showdefaults)
- seq_printf(m, "auto");
}
break;
- default:
- if (showdefaults)
- seq_printf(m, "auto");
}
+ if (proto || showdefaults)
+ seq_printf(m, ",mountproto=%s", proto ?: "auto");
}
static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
@@ -886,7 +879,7 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root)
if (nfss->options & NFS_OPTION_FSCACHE) {
seq_printf(m, "\n\tfsc:\t");
for (i = 0; i < __NFSIOS_FSCACHEMAX; i++)
- seq_printf(m, "%Lu ", totals.bytes[i]);
+ seq_printf(m, "%Lu ", totals.fscache[i]);
}
#endif
seq_printf(m, "\n");
@@ -2308,7 +2301,7 @@ EXPORT_SYMBOL_GPL(nfs_remount);
/*
* Initialise the common bits of the superblock
*/
-inline void nfs_initialise_sb(struct super_block *sb)
+static void nfs_initialise_sb(struct super_block *sb)
{
struct nfs_server *server = NFS_SB(sb);
@@ -2322,8 +2315,6 @@ inline void nfs_initialise_sb(struct super_block *sb)
sb->s_blocksize = nfs_block_bits(server->wsize,
&sb->s_blocksize_bits);
- sb->s_bdi = &server->backing_dev_info;
-
nfs_super_set_maxbytes(sb, server->maxfilesize);
}
@@ -2348,6 +2339,7 @@ void nfs_fill_super(struct super_block *sb, struct nfs_mount_info *mount_info)
*/
sb->s_flags |= MS_POSIXACL;
sb->s_time_gran = 1;
+ sb->s_export_op = &nfs_export_ops;
}
nfs_initialise_sb(sb);
@@ -2357,7 +2349,8 @@ EXPORT_SYMBOL_GPL(nfs_fill_super);
/*
* Finish setting up a cloned NFS2/3/4 superblock
*/
-void nfs_clone_super(struct super_block *sb, struct nfs_mount_info *mount_info)
+static void nfs_clone_super(struct super_block *sb,
+ struct nfs_mount_info *mount_info)
{
const struct super_block *old_sb = mount_info->cloned->sb;
struct nfs_server *server = NFS_SB(sb);
@@ -2368,6 +2361,7 @@ void nfs_clone_super(struct super_block *sb, struct nfs_mount_info *mount_info)
sb->s_xattr = old_sb->s_xattr;
sb->s_op = old_sb->s_op;
sb->s_time_gran = 1;
+ sb->s_export_op = old_sb->s_export_op;
if (server->nfs_client->rpc_ops->version != 2) {
/* The VFS shouldn't apply the umask to mode bits. We will do
@@ -2529,11 +2523,6 @@ static void nfs_get_cache_cookie(struct super_block *sb,
}
#endif
-static int nfs_bdi_register(struct nfs_server *server)
-{
- return bdi_register_dev(&server->backing_dev_info, server->s_dev);
-}
-
int nfs_set_sb_security(struct super_block *s, struct dentry *mntroot,
struct nfs_mount_info *mount_info)
{
@@ -2558,10 +2547,25 @@ EXPORT_SYMBOL_GPL(nfs_set_sb_security);
int nfs_clone_sb_security(struct super_block *s, struct dentry *mntroot,
struct nfs_mount_info *mount_info)
{
+ int error;
+ unsigned long kflags = 0, kflags_out = 0;
+
/* clone any lsm security options from the parent to the new sb */
if (d_inode(mntroot)->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops)
return -ESTALE;
- return security_sb_clone_mnt_opts(mount_info->cloned->sb, s);
+
+ if (NFS_SB(s)->caps & NFS_CAP_SECURITY_LABEL)
+ kflags |= SECURITY_LSM_NATIVE_LABELS;
+
+ error = security_sb_clone_mnt_opts(mount_info->cloned->sb, s, kflags,
+ &kflags_out);
+ if (error)
+ return error;
+
+ if (NFS_SB(s)->caps & NFS_CAP_SECURITY_LABEL &&
+ !(kflags_out & SECURITY_LSM_NATIVE_LABELS))
+ NFS_SB(s)->caps &= ~NFS_CAP_SECURITY_LABEL;
+ return 0;
}
EXPORT_SYMBOL_GPL(nfs_clone_sb_security);
@@ -2601,11 +2605,13 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server,
nfs_free_server(server);
server = NULL;
} else {
- error = nfs_bdi_register(server);
+ error = super_setup_bdi_name(s, "%u:%u", MAJOR(server->s_dev),
+ MINOR(server->s_dev));
if (error) {
mntroot = ERR_PTR(error);
goto error_splat_super;
}
+ s->s_bdi->ra_pages = server->rpages * NFS_MAX_READAHEAD;
server->super = s;
}
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index 191aa577dd1f..e3949d93085c 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -288,6 +288,19 @@ static void nfs_async_rename_release(void *calldata)
if (d_really_is_positive(data->old_dentry))
nfs_mark_for_revalidate(d_inode(data->old_dentry));
+ /* The result of the rename is unknown. Play it safe by
+ * forcing a new lookup */
+ if (data->cancelled) {
+ spin_lock(&data->old_dir->i_lock);
+ nfs_force_lookup_revalidate(data->old_dir);
+ spin_unlock(&data->old_dir->i_lock);
+ if (data->new_dir != data->old_dir) {
+ spin_lock(&data->new_dir->i_lock);
+ nfs_force_lookup_revalidate(data->new_dir);
+ spin_unlock(&data->new_dir->i_lock);
+ }
+ }
+
dput(data->old_dentry);
dput(data->new_dentry);
iput(data->old_dir);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index b00d53d13d47..b1af5dee5e0a 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -40,6 +40,12 @@
#define MIN_POOL_WRITE (32)
#define MIN_POOL_COMMIT (4)
+struct nfs_io_completion {
+ void (*complete)(void *data);
+ void *data;
+ struct kref refcount;
+};
+
/*
* Local function declarations
*/
@@ -60,14 +66,28 @@ static mempool_t *nfs_wdata_mempool;
static struct kmem_cache *nfs_cdata_cachep;
static mempool_t *nfs_commit_mempool;
-struct nfs_commit_data *nfs_commitdata_alloc(void)
+struct nfs_commit_data *nfs_commitdata_alloc(bool never_fail)
{
- struct nfs_commit_data *p = mempool_alloc(nfs_commit_mempool, GFP_NOIO);
+ struct nfs_commit_data *p;
- if (p) {
- memset(p, 0, sizeof(*p));
- INIT_LIST_HEAD(&p->pages);
+ if (never_fail)
+ p = mempool_alloc(nfs_commit_mempool, GFP_NOIO);
+ else {
+ /* It is OK to do some reclaim, not no safe to wait
+ * for anything to be returned to the pool.
+ * mempool_alloc() cannot handle that particular combination,
+ * so we need two separate attempts.
+ */
+ p = mempool_alloc(nfs_commit_mempool, GFP_NOWAIT);
+ if (!p)
+ p = kmem_cache_alloc(nfs_cdata_cachep, GFP_NOIO |
+ __GFP_NOWARN | __GFP_NORETRY);
+ if (!p)
+ return NULL;
}
+
+ memset(p, 0, sizeof(*p));
+ INIT_LIST_HEAD(&p->pages);
return p;
}
EXPORT_SYMBOL_GPL(nfs_commitdata_alloc);
@@ -82,8 +102,10 @@ static struct nfs_pgio_header *nfs_writehdr_alloc(void)
{
struct nfs_pgio_header *p = mempool_alloc(nfs_wdata_mempool, GFP_NOIO);
- if (p)
+ if (p) {
memset(p, 0, sizeof(*p));
+ p->rw_mode = FMODE_WRITE;
+ }
return p;
}
@@ -92,6 +114,39 @@ static void nfs_writehdr_free(struct nfs_pgio_header *hdr)
mempool_free(hdr, nfs_wdata_mempool);
}
+static struct nfs_io_completion *nfs_io_completion_alloc(gfp_t gfp_flags)
+{
+ return kmalloc(sizeof(struct nfs_io_completion), gfp_flags);
+}
+
+static void nfs_io_completion_init(struct nfs_io_completion *ioc,
+ void (*complete)(void *), void *data)
+{
+ ioc->complete = complete;
+ ioc->data = data;
+ kref_init(&ioc->refcount);
+}
+
+static void nfs_io_completion_release(struct kref *kref)
+{
+ struct nfs_io_completion *ioc = container_of(kref,
+ struct nfs_io_completion, refcount);
+ ioc->complete(ioc->data);
+ kfree(ioc);
+}
+
+static void nfs_io_completion_get(struct nfs_io_completion *ioc)
+{
+ if (ioc != NULL)
+ kref_get(&ioc->refcount);
+}
+
+static void nfs_io_completion_put(struct nfs_io_completion *ioc)
+{
+ if (ioc != NULL)
+ kref_put(&ioc->refcount, nfs_io_completion_release);
+}
+
static void nfs_context_set_write_error(struct nfs_open_context *ctx, int error)
{
ctx->error = error;
@@ -263,16 +318,15 @@ int nfs_congestion_kb;
static void nfs_set_page_writeback(struct page *page)
{
- struct nfs_server *nfss = NFS_SERVER(page_file_mapping(page)->host);
+ struct inode *inode = page_file_mapping(page)->host;
+ struct nfs_server *nfss = NFS_SERVER(inode);
int ret = test_set_page_writeback(page);
WARN_ON_ONCE(ret != 0);
if (atomic_long_inc_return(&nfss->writeback) >
- NFS_CONGESTION_ON_THRESH) {
- set_bdi_congested(&nfss->backing_dev_info,
- BLK_RW_ASYNC);
- }
+ NFS_CONGESTION_ON_THRESH)
+ set_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC);
}
static void nfs_end_page_writeback(struct nfs_page *req)
@@ -285,7 +339,7 @@ static void nfs_end_page_writeback(struct nfs_page *req)
end_page_writeback(req->wb_page);
if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
- clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
+ clear_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC);
}
@@ -548,9 +602,21 @@ static void nfs_write_error_remove_page(struct nfs_page *req)
{
nfs_unlock_request(req);
nfs_end_page_writeback(req);
- nfs_release_request(req);
generic_error_remove_page(page_file_mapping(req->wb_page),
req->wb_page);
+ nfs_release_request(req);
+}
+
+static bool
+nfs_error_is_fatal_on_server(int err)
+{
+ switch (err) {
+ case 0:
+ case -ERESTARTSYS:
+ case -EINTR:
+ return false;
+ }
+ return nfs_error_is_fatal(err);
}
/*
@@ -558,8 +624,7 @@ static void nfs_write_error_remove_page(struct nfs_page *req)
* May return an error if the user signalled nfs_wait_on_request().
*/
static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
- struct page *page, bool nonblock,
- bool launder)
+ struct page *page, bool nonblock)
{
struct nfs_page *req;
int ret = 0;
@@ -575,19 +640,19 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
WARN_ON_ONCE(test_bit(PG_CLEAN, &req->wb_flags));
ret = 0;
+ /* If there is a fatal error that covers this write, just exit */
+ if (nfs_error_is_fatal_on_server(req->wb_context->error))
+ goto out_launder;
+
if (!nfs_pageio_add_request(pgio, req)) {
ret = pgio->pg_error;
/*
- * Remove the problematic req upon fatal errors
- * in launder case, while other dirty pages can
- * still be around until they get flushed.
+ * Remove the problematic req upon fatal errors on the server
*/
if (nfs_error_is_fatal(ret)) {
nfs_context_set_write_error(req->wb_context, ret);
- if (launder) {
- nfs_write_error_remove_page(req);
- goto out;
- }
+ if (nfs_error_is_fatal_on_server(ret))
+ goto out_launder;
}
nfs_redirty_request(req);
ret = -EAGAIN;
@@ -596,16 +661,18 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
NFSIOS_WRITEPAGES, 1);
out:
return ret;
+out_launder:
+ nfs_write_error_remove_page(req);
+ return ret;
}
static int nfs_do_writepage(struct page *page, struct writeback_control *wbc,
- struct nfs_pageio_descriptor *pgio, bool launder)
+ struct nfs_pageio_descriptor *pgio)
{
int ret;
nfs_pageio_cond_complete(pgio, page_index(page));
- ret = nfs_page_async_flush(pgio, page, wbc->sync_mode == WB_SYNC_NONE,
- launder);
+ ret = nfs_page_async_flush(pgio, page, wbc->sync_mode == WB_SYNC_NONE);
if (ret == -EAGAIN) {
redirty_page_for_writepage(wbc, page);
ret = 0;
@@ -617,8 +684,7 @@ static int nfs_do_writepage(struct page *page, struct writeback_control *wbc,
* Write an mmapped page to the server.
*/
static int nfs_writepage_locked(struct page *page,
- struct writeback_control *wbc,
- bool launder)
+ struct writeback_control *wbc)
{
struct nfs_pageio_descriptor pgio;
struct inode *inode = page_file_mapping(page)->host;
@@ -627,7 +693,7 @@ static int nfs_writepage_locked(struct page *page,
nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE);
nfs_pageio_init_write(&pgio, inode, 0,
false, &nfs_async_write_completion_ops);
- err = nfs_do_writepage(page, wbc, &pgio, launder);
+ err = nfs_do_writepage(page, wbc, &pgio);
nfs_pageio_complete(&pgio);
if (err < 0)
return err;
@@ -640,7 +706,7 @@ int nfs_writepage(struct page *page, struct writeback_control *wbc)
{
int ret;
- ret = nfs_writepage_locked(page, wbc, false);
+ ret = nfs_writepage_locked(page, wbc);
unlock_page(page);
return ret;
}
@@ -649,23 +715,34 @@ static int nfs_writepages_callback(struct page *page, struct writeback_control *
{
int ret;
- ret = nfs_do_writepage(page, wbc, data, false);
+ ret = nfs_do_writepage(page, wbc, data);
unlock_page(page);
return ret;
}
+static void nfs_io_completion_commit(void *inode)
+{
+ nfs_commit_inode(inode, 0);
+}
+
int nfs_writepages(struct address_space *mapping, struct writeback_control *wbc)
{
struct inode *inode = mapping->host;
struct nfs_pageio_descriptor pgio;
+ struct nfs_io_completion *ioc = nfs_io_completion_alloc(GFP_NOFS);
int err;
nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGES);
+ if (ioc)
+ nfs_io_completion_init(ioc, nfs_io_completion_commit, inode);
+
nfs_pageio_init_write(&pgio, inode, wb_priority(wbc), false,
&nfs_async_write_completion_ops);
+ pgio.pg_io_completion = ioc;
err = write_cache_pages(mapping, wbc, nfs_writepages_callback, &pgio);
nfs_pageio_complete(&pgio);
+ nfs_io_completion_put(ioc);
if (err < 0)
goto out_err;
@@ -728,8 +805,6 @@ static void nfs_inode_remove_request(struct nfs_page *req)
if (likely(head->wb_page && !PageSwapCache(head->wb_page))) {
set_page_private(head->wb_page, 0);
ClearPagePrivate(head->wb_page);
- smp_mb__after_atomic();
- wake_up_page(head->wb_page, PG_private);
clear_bit(PG_MAPPED, &head->wb_flags);
}
nfsi->nrequests--;
@@ -915,6 +990,11 @@ int nfs_write_need_commit(struct nfs_pgio_header *hdr)
return hdr->verf.committed != NFS_FILE_SYNC;
}
+static void nfs_async_write_init(struct nfs_pgio_header *hdr)
+{
+ nfs_io_completion_get(hdr->io_completion);
+}
+
static void nfs_write_completion(struct nfs_pgio_header *hdr)
{
struct nfs_commit_info cinfo;
@@ -948,6 +1028,7 @@ next:
nfs_release_request(req);
}
out:
+ nfs_io_completion_put(hdr->io_completion);
hdr->release(hdr);
}
@@ -1353,6 +1434,7 @@ static void nfs_async_write_reschedule_io(struct nfs_pgio_header *hdr)
}
static const struct nfs_pgio_completion_ops nfs_async_write_completion_ops = {
+ .init_hdr = nfs_async_write_init,
.error_cleanup = nfs_async_write_error,
.completion = nfs_write_completion,
.reschedule_io = nfs_async_write_reschedule_io,
@@ -1370,7 +1452,7 @@ void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio,
pg_ops = server->pnfs_curr_ld->pg_write_ops;
#endif
nfs_pageio_init(pgio, inode, pg_ops, compl_ops, &nfs_rw_write_ops,
- server->wsize, ioflags);
+ server->wsize, ioflags, GFP_NOIO);
}
EXPORT_SYMBOL_GPL(nfs_pageio_init_write);
@@ -1707,50 +1789,14 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how,
if (list_empty(head))
return 0;
- data = nfs_commitdata_alloc();
-
- if (!data)
- goto out_bad;
+ data = nfs_commitdata_alloc(true);
/* Set up the argument struct */
nfs_init_commit(data, head, NULL, cinfo);
atomic_inc(&cinfo->mds->rpcs_out);
return nfs_initiate_commit(NFS_CLIENT(inode), data, NFS_PROTO(inode),
data->mds_ops, how, 0);
- out_bad:
- nfs_retry_commit(head, NULL, cinfo, 0);
- return -ENOMEM;
-}
-
-int nfs_commit_file(struct file *file, struct nfs_write_verifier *verf)
-{
- struct inode *inode = file_inode(file);
- struct nfs_open_context *open;
- struct nfs_commit_info cinfo;
- struct nfs_page *req;
- int ret;
-
- open = get_nfs_open_context(nfs_file_open_context(file));
- req = nfs_create_request(open, NULL, NULL, 0, i_size_read(inode));
- if (IS_ERR(req)) {
- ret = PTR_ERR(req);
- goto out_put;
- }
-
- nfs_init_cinfo_from_inode(&cinfo, inode);
-
- memcpy(&req->wb_verf, verf, sizeof(struct nfs_write_verifier));
- nfs_request_add_commit_list(req, &cinfo);
- ret = nfs_commit_inode(inode, FLUSH_SYNC);
- if (ret > 0)
- ret = 0;
-
- nfs_free_request(req);
-out_put:
- put_nfs_open_context(open);
- return ret;
}
-EXPORT_SYMBOL_GPL(nfs_commit_file);
/*
* COMMIT call returned
@@ -1786,8 +1832,9 @@ static void nfs_commit_release_pages(struct nfs_commit_data *data)
(long long)req_offset(req));
if (status < 0) {
nfs_context_set_write_error(req->wb_context, status);
- nfs_inode_remove_request(req);
- dprintk(", error = %d\n", status);
+ if (req->wb_page)
+ nfs_inode_remove_request(req);
+ dprintk_cont(", error = %d\n", status);
goto next;
}
@@ -1795,12 +1842,13 @@ static void nfs_commit_release_pages(struct nfs_commit_data *data)
* returned by the server against all stored verfs. */
if (!nfs_write_verifier_cmp(&req->wb_verf, &data->verf.verifier)) {
/* We have a match */
- nfs_inode_remove_request(req);
- dprintk(" OK\n");
+ if (req->wb_page)
+ nfs_inode_remove_request(req);
+ dprintk_cont(" OK\n");
goto next;
}
/* We have a mismatch. Write the page again */
- dprintk(" mismatch\n");
+ dprintk_cont(" mismatch\n");
nfs_mark_request_dirty(req);
set_bit(NFS_CONTEXT_RESEND_WRITES, &req->wb_context->flags);
next:
@@ -1808,7 +1856,7 @@ static void nfs_commit_release_pages(struct nfs_commit_data *data)
}
nfss = NFS_SERVER(data->inode);
if (atomic_long_read(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
- clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
+ clear_bdi_congested(inode_to_bdi(data->inode), BLK_RW_ASYNC);
nfs_init_cinfo(&cinfo, data->inode, data->dreq);
nfs_commit_end(cinfo.mds);
@@ -1893,7 +1941,7 @@ int nfs_write_inode(struct inode *inode, struct writeback_control *wbc)
/* Don't commit yet if this is a non-blocking flush and there
* are a lot of outstanding writes for this mapping.
*/
- if (nfsi->commit_info.ncommit <= (nfsi->nrequests >> 1))
+ if (mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK))
goto out_mark_dirty;
/* don't wait for the COMMIT response */
@@ -1986,7 +2034,7 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page)
/*
* Write back all requests on one page - we do this before reading it.
*/
-int nfs_wb_single_page(struct inode *inode, struct page *page, bool launder)
+int nfs_wb_page(struct inode *inode, struct page *page)
{
loff_t range_start = page_file_offset(page);
loff_t range_end = range_start + (loff_t)(PAGE_SIZE - 1);
@@ -2003,7 +2051,7 @@ int nfs_wb_single_page(struct inode *inode, struct page *page, bool launder)
for (;;) {
wait_on_page_writeback(page);
if (clear_page_dirty_for_io(page)) {
- ret = nfs_writepage_locked(page, &wbc, launder);
+ ret = nfs_writepage_locked(page, &wbc);
if (ret < 0)
goto out_error;
continue;
@@ -2108,7 +2156,6 @@ void nfs_destroy_writepagecache(void)
}
static const struct nfs_rw_ops nfs_rw_write_ops = {
- .rw_mode = FMODE_WRITE,
.rw_alloc_header = nfs_writehdr_alloc,
.rw_free_header = nfs_writehdr_free,
.rw_done = nfs_writeback_done,